| Supreme Court, Learning Resources v Trump opinion, 20 February 2026 | — | government |
| govinfo.gov/content/pkg/FR-2026-10-05/html/2026-20228.htm | — | government |
| US Customs and Border Protection, CAPE deployment notice, 20 April 2026 | — | news_article |
| Bureau of Economic Analysis, tariff refund accounting, 30 April 2026 | — | government |
| Congressional Research Service, Supreme Court ruling explanation, 23 February 2026 | — | news_article |
| Congressional Research Service, Potential IEEPA refunds, 13 January 2026 | — | news_article |
| Yale Budget Lab, Tracking Economic Effects of Tariffs, 1 April 2026 | — | news_article |
| Gopinath and Neiman, The Incidence of Tariffs, JEP summer 2026 | — | news_article |