The governing context

As of the morning of 4 November Eastern time, Democrats held at least 54 Senate seats to the Republicans' 44, with Alaska and Mississippi uncalled (Politico). In Mississippi, Democrat Scott Colom led Senator Cindy Hyde-Smith by 43 votes in a state that does not allow recounts, and Alaska's count between Senator Dan Sullivan and Mary Peltola was continuing (Politico). Dozens of House races were uncalled that morning, and a Democratic total of 250 seats or more was in reach (Politico). Republicans entered the election with 53 Senate seats and about 218 House seats.

Hakeem Jeffries is in line to become the first Black Speaker of the House when the 120th Congress convenes on 3 January 2027, and Chuck Schumer is expected to return as Senate majority leader, with John Thune expected to lead the Republican minority (Politico). Robert Garcia is in line to chair House Oversight, Jamie Raskin Judiciary and Adam Smith Armed Services (Politico).

The lame-duck calendar is short. Congress returns on 9 November 2026 and the continuing resolution funding the government expires on 11 December, with the FY2027 NDAA and full-year appropriations unfinished (ABC News (Australia); CSIS). The administration's $350 billion request for defense money through party-line reconciliation can only pass before the Republican majorities expire. Representative Thomas Massie, a Republican who lost his primary, plans to give notice in the week of 9 November that he will force a vote on impeaching Defense Secretary Pete Hegseth (Roll Call).

From January, Democrats gain the power to refuse appropriations, set the Senate's confirmation and floor agenda, issue subpoenas, pass war-powers resolutions through both chambers and review arms sales. They cannot override a veto without at least 13 Republican senators and dozens of House Republicans, cannot overturn executive orders, tariffs or sanctions directly, and cannot conduct foreign policy. The administration's record shows how it is likely to treat oversight. It has waived sanctions Congress passed, conducted the Iran war and the capture of Nicolás Maduro without congressional authorization, and, according to eight current and former officials, slowed and at times stopped intelligence sharing with Congress (Reuters).