Republican control of Congress has enabled repeated House passage of H.R. 22, the SAVE Act requiring documentary proof of U.S. citizenship for federal voter registration and photo identification at the polls, yet the measure has stalled in the Senate. Multiple attempts to advance it as a standalone bill, reconciliation amendment, or attachment to must-pass legislation such as the NDAA have failed, most recently on 48-50 and 49-50 votes where four Republicans joined Democrats to block progress short of the 60-vote filibuster threshold. Senate leadership has signaled limited appetite for further floor action before the end of the session, and internal GOP divisions plus procedural barriers have prevented overrides or rule changes. These repeated setbacks and narrow remaining legislative calendar underpin trader consensus on low enactment odds in 2026.