# Detlef Seif

# Detlef Seif

Detlef Seif (born 15 August 1962 in Euskirchen) is a German lawyer and politician of the [Christian Democratic Union](/organizations/christian-democratic-union-of-germany) (CDU). He has been a member of the Bundestag since 2009 and holds the direct mandate for Euskirchen – Rhein-Erft-Kreis II in North Rhine-Westphalia. The Federal Returning Officer's pages for that constituency record him as the elected candidate in 2009 and in 2025.

He took the Abitur in 1982, performed basic military service from 1982 to 1984, and studied law at the University of Bonn from 1984 to 1989. He passed the first state examination in law in 1990, as a scholarship holder of the [Konrad Adenauer Foundation](/organizations/konrad-adenauer-foundation), and the second in 1993, the year he was admitted as a Rechtsanwalt. He joined the CDU in October 1982, sat on the municipal council of Weilerswist from 1999 to 2009, and from 2009 to 2023 chaired the CDU district association in Euskirchen while serving as deputy chairman of the party's Aachen regional association. The Bundestag biography, which is based on the member's own disclosures, spells the municipality "Weilerwist".

From 2014 to 2025 Seif was the CDU/CSU parliamentary group's coordinator (Obmann) for European Union affairs. In the 21st Bundestag he is a full member of the Committee on the Affairs of the European Union and of the Interior Committee, the group's interior-committee coordinator since May 2025, and its commissioner for implementing the Europäische Asyl- und Migrationswende, the group's label for a turn in European asylum and migration policy. He is also head of the German delegation to the Parliamentary Assembly of the Union for the Mediterranean and a full member of that delegation.

In 2009, when the seat was constituency 93 (Euskirchen – Erftkreis II), Seif won 43.6 percent of the valid first votes, against 29.0 percent for the Social Democratic Party, on a turnout of 71.8 percent. In the same territory, numbered 92 at the next three elections, Seif was again the elected candidate, with 50.9 percent of the valid first votes in 2013, 42.8 percent in 2017 and 34.6 percent in 2021. In the 2025 federal election, as constituency 91, Seif was elected with 38.4 percent of the first votes (78,883); Andrea Kanonenberg of the SPD placed second on 20.7 percent, and turnout was 83.5 percent of 248,663 eligible voters.

On 12 May 2016 Seif read a satirical poem by Jan Böhmermann about Turkish president [Recep Tayyip Erdoğan](/people/recep-tayyip-erdogan) from the Bundestag lectern during the dispute over the criminal offence of insulting organs and representatives of foreign states. He told *[Der Spiegel](/organizations/der-spiegel)* that he wanted to show what the text contained and that its insults crossed a line protected by law for everyone; Green member Renate Künast said she was embarrassed for the house that the poem had been read out.

## Early life, education and legal practice

### Schooling and military service

Detlef Seif was born on 15 August 1962 in Euskirchen, North Rhine-Westphalia. He lives in Weilerswist and has written that he grew up there. The Bundestag biography, compiled from members' own statements, gives the birth date and place in that form. In the sentence on his later municipal-council service it spells the town "Weilerwist"; the spelling used for his legal practice in the same profile, and in regional reporting, is Weilerswist.

In 1982 he passed the Abitur at the Emil-Fischer-Gymnasium in Euskirchen. The school still operates under that name as a Gymnasium in the town.

From 1982 to 1984 he completed basic military service (Grundwehrdienst) in the Bundeswehr at the Heeresamt, the Army Office, in Cologne. The Bundestag biography records the service for those years without naming the posting.

### Legal studies

From 1984 to 1989 Seif studied law at the University of Bonn. He was a scholarship holder of the Konrad Adenauer Foundation; the biography published by the Euskirchen district association of the Christian Democratic Union (CDU) dates the award from 1984 to 1990. In 1990 he passed the first state examination in law (erste juristische Staatsprüfung), the year after the university course recorded in those biographies had ended.

Under the German Judges Act, the qualification for judicial office is acquired by completing a university law course with a first examination and a subsequent preparatory service (Vorbereitungsdienst) with the second state examination. The Federal Lawyers' Act (Bundesrechtsanwaltsordnung) makes that qualification the ordinary condition for admission as a Rechtsanwalt.

From 1990 to 1993 Seif was a legal trainee (Referendar) at the Higher Regional Court of Cologne (Oberlandesgericht Köln). The district CDU biography lists the stages as the local court (Amtsgericht) in Brühl, on both the civil and the criminal side, the Brühl municipal administration, a law firm in Wesseling, and the state chancellery of Saxony in Dresden, in the unit for citizens' concerns under Minister-President Kurt Biedenkopf. He passed the second state examination (zweite juristische Staatsprüfung) in 1993. Neither that curriculum vitae nor the Bundestag profile names a subject concentration for the university course or an elective for the second examination.

### Law practice in Weilerswist

He was admitted as a Rechtsanwalt in 1993. Since then he has practised as a self-employed lawyer with his own firm in Weilerswist, the occupation the Bundestag records both for the years before he entered parliament and as paid work carried on beside the mandate. A commercial directory lists Rechtsanwaltskanzlei Detlef Seif at Bonner Straße 62, 53919 Weilerswist, and classifies the office under family law, employment law, tenancy law, inheritance law and traffic law, including divorce and protection against dismissal. Those headings are the directory's categories for the listing.

The practice has continued during his time in the Bundestag. The Bundestag's register of members' outside activities for the current electoral term still lists him as a lawyer in Weilerswist and itemises fees from private clients for that work.

## Party career and local politics

### Early membership and civic activism

Detlef Seif joined the Christian Democratic Union (CDU) in October 1982. The Bundestag biography, compiled from members' own statements, records various party posts and non-party activity from those years, and describes him as a speaker in the mid-1980s on human-rights violations in the German Democratic Republic. At the March 2025 annual conference of the International Society for Human Rights in Bonn, he said he had himself been a member about forty years earlier, when the organization was still called the Gesellschaft für Menschenrechte, and that his subject then had been those violations.

The same Bundestag biography names him as chairman, in the late 1980s, of a citizens' initiative for the Steinbach dam (Steinbachtalsperre) near Kirchheim, in the Eifel south of Euskirchen. The dam supplied industrial water and was used for recreation, and closure was under discussion while repairs were needed. A report issued for the reopening on 27 April 1990 — it identifies the operator as the Wasserversorgungsverband Euskirchen-Swisttal — said that correspondence and more than 20,000 signatures collected by a "Bürgerinitiative zum Erhalt der Steinbachtalsperre" showed the strength of local feeling. The regional government president granted planning permission on 6 May 1988; the reservoir was emptied on 27–29 August 1988, and building began that September, with the main work due to finish in June 1990. The report credited decisions by the district, the town and the special-purpose association with securing the dam, and thanked residents and the initiative for what it called effective support. In a 2025 candidate profile Seif told the *Kölner Stadt-Anzeiger* that chairing the initiative, which he said had kept the dam, had taught him leadership and persistence.

### Weilerswist council

From 1999 to 2009 Seif sat on the municipal council of Weilerswist, where he lived. The minutes of the council meeting of 18 September 2008 list him as a CDU member, excused that evening, and set out a revised committee roster. That roster, amending council resolutions going back to the sitting of 12 October 2004, names him chair of the Projektausschuss Weilerswist-Süd, the project committee for the Weilerswist-Süd housing area.

### District and regional offices

From 2009 to 2023 he was chairman of the CDU district association (Kreisverband) for the Euskirchen district and deputy chairman of the CDU regional association (Bezirksverband) Aachen.

In January 2023 he told the *Kölner Stadt-Anzeiger* that he would not stand again at the district members' meeting on 3 February. He said the step was not entirely voluntary. After nearly fourteen years — which he described as the longest chairmanship in the association, counting the former Altkreis Schleiden — he had wanted another term, until 2025, in order to finish a modernization he said was already under way. Leading party members told the paper that pressure had increased, and attributed a significant part of it to the CDU in Schleiden and to the district Young Union.

The candidate who emerged was Ingo Pfennings, mayor of Schleiden since 2018, a deputy district chairman since 2019 and a former district chairman of the Young Union. In 2021 the then Schleiden CDU chairman, Jochen Kupp, had proposed Pfennings as a challenger; Pfennings withdrew after speaking with Seif. Writing to local branches, Pfennings credited Seif with calming earlier internal conflicts and asked to be nominated. Seif said he was not leaving politics, intended to run for the Bundestag once more and for the last time, and had been promised Pfennings's support as district chairman if Pfennings were elected.

On the evening of 3 February 2023, in the Bürgerhalle in Kommern, part of Mechernich, 235 members elected Pfennings with 183 votes in favour, 36 against and 16 abstentions — 83.6 percent of the yes and no votes, or 77.8 percent if abstentions are counted in. In his nomination speech Pfennings said Seif had steered the party back into calm water, then added that the water had become too calm, and called the association's condition a "Dornröschenschlaf", a Sleeping Beauty sleep. Seif used the farewell to review the years since he took office in 2009. He recalled what he called the "fiasco" of 2009, when, he said, the CDU had thought it could manage without popular incumbents such as Landrat Günter Rosenke and the mayor of Blankenheim, Rolf Hartmann, and he rejected any thought of the party uniting behind the Social Democratic Party Landrat Markus Ramers for the 2025 election, telling the hall that Ramers was "none of us" ("Markus Ramers ist keiner von uns"). Klaus Voussem, Birgit Braun-Näger and Andreas Winkler were elected deputies. Membership had fallen by 52 over the previous year, to 1,764; the average age was 61.33, with 1,410 men and 354 women.

## Bundestag elections

### The constituency

The Bundestag constituency Euskirchen – Rhein-Erft-Kreis II is in southwestern North Rhine-Westphalia. For the 2025 election the Federal Returning Officer defined it as constituency 91: the whole of the Euskirchen district, plus, from the Rhein-Erft-Kreis, the municipalities of Brühl, Erftstadt and Wesseling. The district’s remaining municipalities form constituency 90, Rhein-Erft-Kreis I. The Returning Officer’s map of constituency 91 names the Euskirchen district’s municipalities as Bad Münstereifel, Blankenheim, Dahlem, Euskirchen, Hellenthal, Kall, Mechernich, Nettersheim, Schleiden, Weilerswist and Zülpich, and places Brühl, Erftstadt and Wesseling along the constituency’s northern and eastern side.

The constituency number has changed without a change in that territorial description between the schedule used for 2021 and the one used for 2025. In the annex to the Federal Elections Act as published at the end of 2020, constituency 92 was already titled Euskirchen – Rhein-Erft-Kreis II and consisted of the Euskirchen district together with Brühl, Erftstadt and Wesseling, the rest of the Rhein-Erft-Kreis being assigned to constituency 91. The Federal Returning Officer used the number 92 and that name for the elections of 2013, 2017 and 2021. In 2009 the office recorded the seat as constituency 93 under the earlier title Euskirchen – Erftkreis II. For 2025 it published the same area — the district plus those three towns — as constituency 91. The seat is filled by the candidate with the most first votes (Erststimmen). Detlef Seif of the Christian Democratic Union (CDU) has won it at every Bundestag election since 2009.

### Results from 2009 to 2021

On 27 September 2009, in constituency 93, 176,069 of 245,382 eligible voters took part, a turnout of 71.8 percent. Of 172,648 valid first votes, Seif received 75,290, or 43.6 percent, and was recorded as elected. The Social Democratic Party (SPD) candidate, Helga Kühn-Mengel, received 50,035 votes (29.0 percent). Helga Gabriele Molitor of the Free Democratic Party (FDP) polled 20,620 (11.9 percent), Dorothee Kroll of Alliance 90/[The Greens](/organizations/the-greens) 12,239 (7.1 percent) and Anita Heinemeyer of [Die Linke](/organizations/die-linke) 11,679 (6.8 percent).

At the election of 22 September 2013 the seat was constituency 92. Turnout was 72.7 percent: 178,218 voters out of 245,268 eligible, and 174,278 valid first votes. Seif’s 88,759 votes were 50.9 percent. Kühn-Mengel, again the SPD candidate, took 53,703 (30.8 percent). Jörg Kutzer (Greens) received 10,066 (5.8 percent), Florian Völlger (Die Linke) 8,166 (4.7 percent) and Gabriele Molitor (FDP) 6,101 (3.5 percent). The North Rhine-Westphalia returning officer reported Seif elected with 50.9 percent of the valid votes.

On 24 September 2017 turnout was 76.1 percent, with 187,796 of 246,753 eligible voters and 185,575 valid first votes. The constituency returning committee’s final declaration gave Seif 79,493 votes (42.8 percent) and stated that he was elected. Ute Meiers (SPD) received 48,592 (26.2 percent), Markus Herbrand (FDP) 18,316 (9.9 percent) and Hans-[Rüdiger Lucassen](/people/rudiger-lucassen) of [the Alternative](/organizations/the-alternative) for Germany (AfD) 17,650 (9.5 percent). Susanne Schütze-Lülsdorf (Die Linke) received 10,835 (5.8 percent) and Hans-Werner Ignatowitz (Greens) 10,689 (5.8 percent).

The election of 26 September 2021 was again fought in constituency 92. Of 249,198 eligible voters, 192,814 cast ballots (77.4 percent), and 190,783 first votes were valid. Seif received 65,981 (34.6 percent), 8.3 points below 2017, and was elected. The SPD candidate, Dagmar Andres, received 50,892 (26.7 percent). Marion Sand (Greens) polled 25,005 (13.1 percent), Herbrand (FDP) 19,805 (10.4 percent), Lucassen (AfD) 14,999 (7.9 percent) and Stefan Söhngen (Die Linke) 4,993 (2.6 percent).

### The 2025 election

The Bundestag election was held on Sunday, 23 February 2025, and the seat was contested as constituency 91. Turnout was 83.5 percent, 6.1 points above 2021: 207,572 voters out of 248,663 eligible, of whom 205,520 cast valid first votes. The final result gave Seif 78,883 first votes, 38.4 percent, 3.8 points more than in 2021. The Federal Returning Officer listed him as elected in the constituency and Andrea Kanonenberg (SPD) as the runner-up, with 42,466 votes, or 20.7 percent, 6.0 points below the SPD’s 2021 share of the first vote.

The candidates admitted in the constituency included Hans Rüdiger Lucassen (AfD), Christian Schubert (Greens), Georg Riemann (Die Linke) and Markus Johannes Herbrand (FDP). On first votes the AfD received 37,837 (18.4 percent, up 10.5 points), the Greens 19,549 (9.5 percent), Die Linke 11,457 (5.6 percent) and the FDP 8,498 (4.1 percent). On second votes the CDU led with 33.8 percent, ahead of the AfD on 18.4 percent and the SPD on 17.7 percent.

Seif took his seat when the 17th Bundestag held its first sitting in Berlin on Tuesday, 27 October 2009. The Bundestag biography records him as a member since 2009, and the current entry lists a constituency mandate for Wahlkreis 091, Euskirchen – Rhein-Erft-Kreis II. Direct election at each contest from 2009 through 2025 places that membership in the 17th through the 21st Bundestag.

## Parliamentary offices

Detlef Seif, of the Christian Democratic Union, has sat in the Bundestag since 27 October 2009 for the joint group of the CDU and the [Christian Social Union in Bavaria](/organizations/christian-social-union-in-bavaria). In the 21st legislative period the chamber, whose biographies rest on members' own information, lists him as a full member of the Committee on European Union Affairs and of the Committee on Internal Affairs (Innenausschuss), as Obmann of the CDU/CSU group on the interior committee, and as both head (Delegationsleiter) and a full member of the German delegation to the Parliamentary Assembly of the Union for the Mediterranean. An Obmann or Obfrau is each group's principal contact in a committee: one is named per group, helps set that group's line, formulates its interests, agrees agendas and plans the sittings, and reports the detail of the work back to the group.

### European Union affairs

Archived Bundestag biographies show Seif as a full member of the Committee on the Affairs of the European Union throughout the 17th legislative period (2009–2013). A page current as of 10 August 2010 lists that committee as his only full membership and records him as a deputy member of the Legal Affairs Committee (Rechtsausschuss) and of the Defence Committee. By 7 December 2012 the biography listed full membership of both the EU committee and the Legal Affairs Committee, with the defence seat still held as a deputy. At the opening of the 18th period, a biography dated 22 September 2013 lists full membership of the renamed Committee on Legal Affairs and Consumer Protection, of the EU committee, and of the parliamentary body under section 23c(8) of the Customs Investigation Service Act (Zollfahndungsdienstgesetz), together with deputy membership of the Interior Committee. Abgeordnetenwatch records the EU seat, the legal-affairs seat and the deputy interior seat for the whole of 2013–2017.

The official biography states that he was EU-Obmann of the CDU/CSU group from 2014 to 2025. Abgeordnetenwatch records that Obmann designation for the 19th term (2017–2021) and the 20th (2021–2025), and lists him in the 21st term as an ordinary member rather than Obmann. He writes that in the EU committee he deals mainly with justice and home affairs, asylum and migration and civil protection, and that he is country rapporteur for the United Kingdom and Ireland. An English biography on his website adds the Schengen Area, border protection and the negotiations under Article 50 of the Treaty on European Union. The Bundestag biography records the Obmann office but does not itemise those subjects.

### Interior committee

Abgeordnetenwatch lists him as a full member of the Committee on the Interior and Homeland (Ausschuss für Inneres und Heimat) in the 19th and 20th terms. For the 20th term that register also includes the body under section 80 of the Customs Investigation Service Act, which it does not list for the 19th term. For 2017–2021 it lists him as an alternate member of the first committee of inquiry into the [2016 Berlin truck attack](/facts/2016-berlin-truck-attack).

In the 21st Bundestag the CDU/CSU page names him Obmann in the interior committee, deputy chairman of the group's interior working group, and the group chairman's commissioner for implementing the European asylum and migration turn (Beauftragter des Fraktionsvorsitzenden für die Umsetzung der europäischen Asyl- und Migrationswende). The interior working group's chairman is [Alexander Throm](/people/alexander-throm), and the group page also places Seif in its working group on European Union affairs. The chamber's biography dates the interior Obmann post from May 2025 and the commissioner role from 2025. On 20 May 2025 group chairman Jens Spahn announced the appointment, together with two other special commissioners, and described Seif's emphases as interior policy and European policy. He states that he is the group's interior-committee rapporteur in particular for asylum and migration and for population protection. His chronology also lists a rapporteurship for civil, population and disaster protection for 2021–2025.

### Union for the Mediterranean and other bodies

The Bundestag is represented in the Parliamentary Assembly of the Union for the Mediterranean by a three-member delegation led by Seif, who is listed as both its head and a full member. The chamber's page on the assembly says it was founded in 2004 as the Euro-Mediterranean Parliamentary Assembly and, since 2010, has been the parliamentary assembly of the [Union for the Mediterranean](/organizations/union-for-the-mediterranean), accompanying cooperation opened by the 1995 Barcelona Declaration and continued since the Union was created in 2008. A plenary meets once a year in the country holding the presidency, and the German delegation reports regularly to the Bundestag.

Europa-Union Deutschland, which describes itself as a non-partisan citizens' organisation working for European unification, lists Seif among the members of its cross-party parliamentary group in the 21st Bundestag. As of May 2025 he wrote that he belonged to the German-British, German-American and Maghreb parliamentary groups and took part in events with foreign politicians and diplomats. Those friendship-group memberships are not listed on his Bundestag biography.

## Migration, asylum and internal security

### Positions after 2015

On 21 September 2015, as CDU/CSU coordinator on the Bundestag committee for European Union affairs, Seif told Deutschlandfunk that the Dublin Regulation was a "fair-weather system": strictly applied, Germany would have been responsible for about 3,000 asylum seekers a year arriving by air, and Greece for more than a million. He backed Interior Minister Thomas de Maizière's quotas inside the European Union, support for neighbouring states where refugees were already living, and procedures at the external border. Quotas must not end protection for someone fleeing persecution or fighting, he said; asylum, refugee status and subsidiary protection should remain, and Article 16a of the Basic Law should be adjusted on safe third countries. He called Chancellor [Angela Merkel](/people/angela-merkel)'s admission of people held in poor conditions at the Hungarian border humanitarian, but misread as an unlimited welcome.

In the *Kölnische Rundschau* of 26 September 2025 he said more than 10,000 people a day had arrived unregistered, and that he had been among more than 40 CDU and CSU deputies who asked Merkel to order turn-backs, which did not happen. He had supported emergency aid, he said, but Merkel had then treated Dublin as suspended, while "Wir schaffen das", images of migrants with the chancellor, and a Federal Office for Migration and Refugees figure of 800,000 applicants—understood in Afghanistan, he said, as a quota—had set people moving. On 19 January 2016 *Der Spiegel*, citing dpa, reported a five-page letter with 44 Union signatures at the Chancellery, warning of an "Überforderung unseres Landes" and demanding strict application of existing law, including Dublin. Published names included Stephan Mayer, Wolfgang Bosbach and [Carsten Linnemann](/people/carsten-linnemann); the full list was not released, and Seif was not among those named.

In the 21st Bundestag he called reinforced internal-border checks, and turning back asylum applicants other than particularly vulnerable people, temporary and still pro-European. On 5 June 2025 he described Greens and Die Linke motions to stop the turn-backs as an "open door" policy: land arrivals had already crossed a safe third country, many were not registered in Eurodac, and Dublin transfers mostly failed, while overload of offices, courts, housing, schools and care endangered internal security. On 11 September he invoked Article 72 of the Treaty on the Functioning of the European Union, on public order and internal security, and said rulings of the Berlin administrative court bound only the individual case. Die Linke's [Clara Bünger](/people/clara-bunger) replied that the court had decided questions of principle, that Article 72 required an emergency Germany did not face, and that the European Court of Justice had not accepted such an emergency elsewhere. Seif told the *Rundschau* that jurist Daniel Thym read Article 72 as allowing Dublin exceptions without the emergency in Article 78, and that the government had not argued that in Berlin. He accepted a figure of 692 asylum turn-backs since [Friedrich Merz](/people/friedrich-merz) took office, but stressed deterrence, and called checks on every traveller or the dismantling of cross-border roads "Irrsinn".

### European asylum and returns policy

The [European Commission](/organizations/european-commission) describes the Pact on Migration and Asylum as rules on screening, an expanded Eurodac database, a border procedure and returns, and standing solidarity, applying from June 2026, with a role for Frontex. On 5 June 2025 Seif said parts of those rules were too complicated, that Europe needed a burden quota, and that procedures had to be held outside the Union. Border procedures, Frontex, physical protection and the Entry/Exit System would raise security, he said, without ending what he, citing Ruud Koopmans, called an "asylum lottery": an application brought a de facto stay. Persecution, status under the Geneva Refugee Convention and subsidiary protection in war could, on his count, cover some 300 million people, more than the EU could admit.

He wanted proceedings in third countries such as Rwanda, Mauritania, the Maghreb or Uganda, with protected people staying there—an idea he said was in the CDU basic programme—rather than SPD plans, as he described them, to bring successful applicants into the EU. The Refugee Convention, he argued, bars transfer into persecution, not transfer to a country offering a prospect; the [United Nations](/organizations/united-nations) and the [International Organization for Migration](/organizations/international-organization-for-migration) could still select particularly vulnerable people under a lower annual ceiling. Commissioner Magnus Brunner's return centres could be a first step, and readmission—he cited Morocco's reluctance to take its own citizens—needed partnerships offering training and visas.

On 6 June 2025 he defended a draft two-year suspension, then an evaluation, of family reunification for beneficiaries of subsidiary protection. On 27 June the Bundestag suspended that reunification, hardship cases aside; people granted asylum or Geneva Convention refugee status could still bring close relatives. A ceiling of 1,000 visas a month had applied since 2018, and about 381,000 people with subsidiary protection lived in Germany at the end of 2024, some 296,000 of them from Syria. Interior Minister [Alexander Dobrindt](/people/alexander-dobrindt) called the step one way to reduce arrivals; Pro Asyl called it a "Familienzerstörungsgesetz", and the churches said the Basic Law's protection of the family covers people seeking protection. Seif also wanted safe countries of origin, starting with Algeria, Morocco, Tunisia and India, designated by ordinance; deletion of the "connection element" so removal to safe third countries would be possible; Federal Police power to seek short custody, which he said might have prevented the Breitscheidplatz attack by Anis Amri; standing departure custody for dangerous persons and serious offenders; and pressure through visas, development aid and trade. A low count of completed turn-backs, he told the AfD, missed people who no longer set out.

### Spokesperson role from 2025

The Bundestag lists Seif as *Obmann* of the CDU/CSU group on the Interior Committee in the 21st term. On 20 May 2025 group chairman Jens Spahn appointed him commissioner for implementing the European asylum and migration turn (*europäische Asyl- und Migrationswende*). On 11 September 2025, against an AfD motion to turn back every asylum seeker, he quoted its call for "lückenlos" control of land and sea borders, all technical means and, if judged necessary, fewer cross-border roads, plus gapless rail checks. He called that an attack on free movement and European unification, and said barring children, pregnant women and the sick in every case would be unlawful because proportionality still applied. He called the motion unusable and hostile to Europe, and described the checks then in force as preliminary.

## European and foreign policy

### Eurozone, Brexit and judicial cooperation

On 29 September 2011 the Bundestag passed a CDU/CSU–FDP bill expanding the European Financial Stability Facility, the temporary euro-area rescue fund. The roll call was 523 in favour, 85 against and three abstentions; the coalition reached a chancellor’s majority of 315 yes votes, with ten CDU and CSU members voting no. Seif is marked yes on the official division list. That morning ARD’s *Panorama* asked members which countries had already drawn EFSF loans. Seif said he could not give the sum “to the euro” and, asked which countries, requested a cut. The report named Ireland and Portugal and put Germany’s share of the guarantees at €211 billion; the reform also added bond purchases, precautionary loans and bank support.

He later dissented on the Greek government-debt crisis. On 17 July 2015 the Bundestag authorised talks on a third programme for Greece and a bridge loan, by 439 to 119 with 40 abstentions. Of the CDU/CSU, 60 voted no; Seif’s mark is in that column. On 19 August the House approved the programme itself, a [European Stability Mechanism](/organizations/european-stability-mechanism) facility. The final count was 453 yes, 113 no and 18 abstentions; the CDU/CSU split was 228 yes, 63 no and three abstentions, and Seif again voted no. The day before, discussing the proposed €86 billion, he told tagesschau.de that watered-down rules created “false incentives” and that the International Monetary Fund was no longer independent because new money would repay its earlier loans.

From 2014 to 2025 he was the CDU/CSU group’s coordinator (*Obmann*) on the Committee on the Affairs of the European Union. Deutschlandfunk introduced him in June 2016 as that coordinator and as rapporteur for the United Kingdom. A week before the referendum he said a departing country must not cherry-pick, or the European Union would lose its point, and that membership had to keep a benefit of its own; a British exit, he added, would remove a blocking minority of states he called fiscally stricter. His own description of the brief adds justice and home affairs, including the Schengen Area and border protection, and talks under Article 50 on the United Kingdom and Ireland. On 13 December 2018, in a Brexit debate, he called the outcome a lose-lose, said renegotiation of the withdrawal agreement was excluded because red lines had already been crossed, and argued that neither the EU nor the single market’s integrity could be impaired. He said British fears that rules for Northern Ireland were meant to keep the country in the EU should be answered with a free-trade agreement, and he urged acceptance of the negotiated treaty. He listed contingency laws already prepared on citizenship, finance, social security, labour-market access and residence.

### Mediterranean and Middle East diplomacy

The Parliamentary Assembly of the Union for the Mediterranean was founded in 2004 as the Euro-Mediterranean Parliamentary Assembly and, since 2010, follows the intergovernmental Union for the Mediterranean, which continues the 1995 Barcelona Declaration. It meets yearly in the country holding the presidency. The Bundestag sends a three-member delegation, led by Seif, which reports to the House. The assembly has 280 members, half from parliaments north of the Mediterranean and the [European Parliament](/organizations/european-parliament) and half from southern partners; Syria’s membership is suspended.

A Bundestag interview of 10 December 2025 presented him as head of the German delegation to a forum in Cairo on 27–30 November 2025 on reviving the Barcelona process. He said he had asked that a draft text condemn Hamas attacks by name; what was adopted, on his account, condemned attacks on civilians in general and demanded that Hamas free remaining hostages. He said his speech answered accusations of genocide against Israel in Gaza that omitted 7 October 2023, and he grouped Hamas, Hezbollah and the Houthis as “Triple H terrorism,” a phrase of his own, arguing they should lose outside support. Of Egypt he said human rights were better raised later, inside an interest-led relationship, than by an opening moral lecture. He added that he had just been elected delegation leader and that the assembly still had no working budget.

He returned for the 19th plenary on 4–5 July 2026, with Maximilian Krah of the AfD, and stood in for Bundestag president [Julia Klöckner](/people/julia-klockner) at the parallel tenth summit of speakers. The agenda included parliamentary diplomacy and Mediterranean peace, women in the “blue economy,” and biodiversity. In an interview published on 16 July he regretted Israel’s absence while Palestinian representatives attended. Peace, he said, required governments to reject terrorism rather than cast terrorists as freedom fighters; parliamentary diplomacy could only prepare agreement. He described the closing text as restating a two-state solution, civilian protection and de-escalation, and said a secretariat in Rome was aimed at opening by the end of 2026.

## Controversies and intra-party disputes

### The Böhmermann poem in the Bundestag

On 12 May 2016 the Bundestag gave a first reading to bills to repeal or recast § 103 of the Criminal Code, the offence of insulting organs and representatives of foreign states. The debate followed the Böhmermann affair: Jan Böhmermann had read a poem about Turkish president Recep Tayyip Erdoğan on ZDF's *Neo Magazin Royale*; Erdoğan sought a prosecution; and Chancellor Angela Merkel's government authorized proceedings under § 104a while saying the section should go in that legislative period. ZDF had removed the clip from its media library. The SPD, Alliance 90/The Greens and Die Linke wanted a rapid repeal; CDU and CSU speakers warned against a rushed, case-driven change.

Detlef Seif said he had planned a legal-policy speech but that the poem was known only in fragments, then read it in full "damit man weiß, was hier überhaupt gesagt worden ist." He argued that it appealed to resentments and attacked Erdoğan's honour, that the courts—not § 103—had to decide whether opinion and press freedom covered it, and that nothing should be amended that day. He told *Spiegel Online* he had wanted to show what lay behind the poem, and that such formulations crossed a line the law protected for "schlechte wie gute Menschen."

SPD member Christian Flisek said the quotation should have been spared because any legal judgment depended on the satirical context. Green member [Renate Künast](/people/renate-kunast) said she was "sehr peinlich berührt für dieses Haus," noted that indemnity protected him, and added that it remained to be seen whether the speech would help his career. Vice-President [Edelgard Bulmahn](/people/edelgard-bulmahn) (SPD) did not interrupt; she later said courts would assess the text, but members should remember "dass wir im deutschen Parlament sind," including when quoting, and she issued no formal reprimand. Böhmermann wrote on Twitter that the reading was "bewusst verletzend"—Merkel's phrase for the poem—and requested that Seif's immunity be lifted for a breach of § 103, calling the performance shameful and taken out of context. The verbatim record of the 170th sitting therefore contains the poem.

### Rhetoric toward the AfD

On 12 January 2022, in a debate on the new government's interior and homeland policy, Seif turned on [Alternative for Germany](/organizations/alternative-for-germany) member [Gottfried Curio](/people/gottfried-curio). "Herr Curio, um mal in Ihren Worten zu bleiben: Sie sind ein kommunikativer Messerstecher und Terrorist," he said, adding that what Curio spread produced a poisoned climate and that Curio was a "Brandstifter" for acts others later carried out with knives and pistols. The remark was applauded by the CDU/CSU, the SPD, the Greens, the FDP and the Left. Vice-President [Petra Pau](/people/petra-pau) (Die Linke) asked him to moderate his language when characterizing other members and to use a parliamentary mode of expression.

In October 2024 he opposed a cross-party move for the Bundestag to ask the Federal [Constitutional Court](/organizations/constitutional-court) to ban the AfD. He told the *Kölner Stadt-Anzeiger* that some AfD statements were openly "völkisch" and racist and incompatible with the constitutional order, but that a failed case would give the party a "Gütesiegel" from the court, "der größte anzunehmende Unfall," so none should be opened. His group, he said, had rejected the move by a large majority: a suspected-extremist listing was not the ban test, and other parties should answer the AfD politically.

On the evening of the February 2025 federal election, at the district offices in Euskirchen, Seif refused a handshake and a photograph with AfD candidate Rüdiger Lucassen. The *Kölner Stadt-Anzeiger* quoted him: "Ich möchte nicht mit Ihnen auf einem Foto sein."

### Party office, votes and other disputes

In January 2023 Seif said he would not stand again as CDU chairman in the district of Euskirchen, an office he had held for almost 14 years. He told the *Kölner Stadt-Anzeiger* that the decision was "nicht ganz freiwillig" and that he would have liked to continue until 2025. Ingo Pfennings, mayor of Schleiden, succeeded him on 3 February 2023 in Kommern by 183 votes to 36. Pfennings said Seif had brought the party into calmer waters that had become too calm, a "Dornröschenschlaf."

On 30 June 2017 Seif voted no on opening [marriage to same-sex couples](/facts/same-sex-marriage-in-germany); the bill passed 393 to 226, with four abstentions. On 17 July 2015 he voted no, against most of the CDU/CSU, on authorizing talks for a third stability programme for Greece; the motion passed 439 to 119, with 40 abstentions.

In March 2021, after reports that CDU member Nikolas Löbel and CSU member Georg Nüßlein had earned six-figure sums arranging mask contracts, Seif said they had lost their political compass. He called profiting from the crisis "verwerflich" and a "riesigen Schatten" on politics, treating it as a moral question first; he was not reported to have been involved.

His comments on Friedrich Merz differed by year. In March 2020, after [Annegret Kramp-Karrenbauer](/people/annegret-kramp-karrenbauer) announced her resignation as CDU leader, Seif said he would not yet choose among undeclared candidates, but that "Friedrich Merz sollte es nicht machen" because Merz had been outside day-to-day politics since 2009. In January 2025 he welcomed Merz's migration and security proposals after a fatal knife attack in Aschaffenburg, calling the Union text "einen Antrag der Union pur" and saying there would be no cooperation, coalition or substantive coordination with the AfD, which he described as a political opponent.

In October 2026, after Darmstadt prosecutors charged a former employee of Cologne's foreigners' authority over an alleged smuggling group, Seif, then CDU/CSU interior spokesman, told the *Kölner Stadt-Anzeiger* the office needed an outside check "auf Herz und Nieren," naming the Federal Office for Migration and Refugees. He spoke of "wachsenden Kontrollverlust" in a self-described "Willkommensbehörde," said the city was failing as employer, and called work on the Coesfeld list only internal and half-hearted.

## Outside income and personal life

### Disclosed outside earnings

Members of the Bundestag must notify the President of paid activities carried on beside the mandate. The Members of the Bundestag Act (*Abgeordnetengesetz*) treats the mandate as [the centre](/organizations/the-centre) of a member's work but generally permits outside professional activity, and since 19 October 2021 the conduct rules have formed part of the Act rather than the parliament's rules of procedure. For each such activity the income must also be reported, and is published to the cent, when it exceeds €1,000 in a month or, if that monthly figure is not reached, €3,000 in a calendar year. Where a statutory duty of confidentiality applies, the member need not name the client and gives a branch of activity instead; the notifiable details are published on the member's biography page.

On Detlef Seif's page for the 2025–2029 term, the only paid outside activity listed is his work as a self-employed lawyer (*Rechtsanwalt*) in Weilerswist. He was admitted in 1993, and the same disclosure lists that practice as the occupation he held before entering parliament in 2009. The itemized sums are separate gross fees from anonymized private clients, each labelled "Privatkundenbereich", not pay from a named company or a standing retainer. The biography shows eleven such payments for 2025, from €1,049.60 to €6,206.44, and eleven for 2026, from €1,117.52 to €10,589.45, the largest being €10,589.45 for "Mandant 153". Abgeordnetenwatch, which compiles the Bundestag register, records those entries as one-off gross amounts. No board seats, company holdings or other paid sidelines appear in the current disclosure.

### Family and other activities

The Bundestag biography, which the parliament notes is based on members' own statements, says that Seif was born on 15 August 1962 in Euskirchen, is Evangelical Lutheran, is married and has one child. An election profile in the *Kölner Stadt-Anzeiger* gives Weilerswist as his place of residence and the child as a daughter. His constituency office is at Bischofstraße 21, 53879 Euskirchen. From 1999 to 2009 he was a member of the Weilerswist municipal council.

Europa-Union Deutschland lists him in its parliamentary group in the 21st Bundestag and states that the group is composed of those deputies who belong to the organization. Speaking at the annual meeting of the International Society for Human Rights in Bonn in March 2025, he said he had been a member about forty years earlier, when it was still the Gesellschaft für Menschenrechte, and was considering rejoining. The Bundestag biography separately records that in the mid-1980s he spoke on human-rights violations in the German Democratic Republic. In May 2025 the society reported that Seif, of the Christian Democratic Union, had taken on a political sponsorship for Yevhen Humeniuk, a civilian from Ukraine abducted in 2022, and had called for his release.

Abgeordnetenwatch counts one answer among 19 questions put to him during the current mandate. Asked on 25 August 2026 why he does not reply, he wrote that public forums are often misused by interested persons and lobby groups, and that he had therefore decided, as a rule, not to answer questions on the site.

## Dated facts

_No published facts on this page yet._

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/people/detlef-seif