On January 27, 2026, the Trump administration announced what it called “a historic expansion” of the Mexico City Policy, a longstanding U.S. rule restricting foreign aid funding related to abortion. The expansion extends the policy beyond abortion to include activities related to diversity, equity, and inclusion (DEI) and gender‑affirming care. Effective February 26, 2026, the change represents the most significant revision to the policy in its 40‑year history and could substantially reshape the distribution of U.S. foreign assistance worldwide.