Senate Democrats blocked the advancement of the $1.15 trillion National Defense Authorization Act (NDAA) on July 14, 2026, citing concerns over the resumed U.S. military operations in Iran. The procedural vote failed 50-46, with Senate Majority Leader John Thune (R-S.D.) switching his vote to allow a future reconsideration.
The bipartisan NDAA, which had advanced from the Senate Armed Services Committee on June 11 with an 18-9 vote, includes provisions for Pentagon funding, military pay raises, and defense policy priorities. Democrats argued that the bill could serve as implicit approval for the Iran conflict, which resumed after a fragile ceasefire collapsed. Senate Minority Leader Chuck Schumer (D-N.Y.) criticized the timing of the vote, stating that Congress should not debate defense policy while ignoring the ongoing war.
Republicans, including Senate Armed Services Committee Chairman Roger Wicker (R-Miss.), condemned the blockade, calling it unprecedented and accusing Democrats of partisan obstruction. Senate Majority Leader John Thune (R-S.D.) emphasized the bill's importance for national security and military readiness.
The White House had formally notified Congress on July 13 that hostilities in Iran had resumed, reigniting debates over war powers and congressional oversight. Democrats have repeatedly attempted to impose restrictions on the administration's military actions, but these efforts have been unsuccessful. The NDAA's future remains uncertain as both parties grapple with the political and strategic implications of the Iran conflict.