Senate Republicans have advanced a new budget resolution in early August 2026 to instruct multiple committees on drafting a potential third reconciliation package focused on defense, agriculture, intelligence, and related spending, with instructions due by mid-September. This follows the June enactment of the Secure America Act, which used the process for border and immigration funding after a 52-47 Senate vote. Key variables include internal GOP divisions over spending levels and Byrd rule compliance, the need for unified party support to clear the chamber on a simple majority, and competition with the regular appropriations calendar. Any bill would still require House concurrence and presidential signature before the resolution window closes.