Rand Paul

Rand Paul is the Republican Senator for Kentucky, serving since 2011. A practising ophthalmologist before entering politics, he is the son of former congressman and presidential candidate Ron Paul. He holds a consistently libertarian and non-interventionist position, opposing US military interventions abroad, large foreign aid budgets, and the expansion of executive war powers — views that regularly put him at odds with the Republican mainstream but have made him the most consistent congressional dissenter on every US military engagement since his election.

Paul co-sponsored the Kaine-Paul War Powers Resolution and voted for every iteration of the Iran WPR motion from March through May 2026, making him the only Republican to do so across all seven floor votes and the 19 May discharge motion. On 22 April, when Senator Fetterman crossed to Republicans on the fifth WPR, Paul crossed to Democrats — a symmetrical defection that produced the tightest margin of the war, 51-46. On 30 April, Collins became only the second Republican to join him, and by the seventh vote on 13 May three Republicans voted yes (Paul, Collins, Murkowski). On 19 May 2026, Paul was among the four crossing Republicans whose discharge vote cleared 50-47, placing the Kaine resolution on the floor calendar for the first time in eight attempts. Paul also crossed on the Cuba war-powers vote of 29 April, voting with Democrats alongside Collins.

On the AUMF debate, Paul and Murkowski represent distinct Republican dissents: Murkowski seeks accountability through authorisation; Paul seeks termination through war-powers enforcement. Paul has not endorsed the Murkowski AUMF approach, viewing any new authorisation as legitimising what he considers an unconstitutional operation. His libertarian minority position has been consistent since 2001 when he argued against the original post-9/11 AUMF, and the 19 May discharge success marks the first time his consistent position has translated into a procedural outcome.