Lawmakers at the U.S. Capitol expressed growing concern over the Trump administration’s rationale and strategy for the war with Iran, demanding clarity on objectives, exit plans, and the cost in lives and resources.

Closed-door briefings with House and Senate members revealed conflicting explanations from officials, with Secretary of State Marco Rubio saying Trump acted to prevent Iran from acquiring nuclear weapons, while some suggested the timing related to Israel’s readiness to strike.

Congress is considering a war powers resolution to limit Trump’s authority to continue the campaign, amid concerns over potential U.S. troop deployments and mission creep.

Lawmakers from both parties debated the risks, with Democrats warning against prolonged military engagement and Republicans emphasizing the need to defend U.S. interests while avoiding nation-building, the AP has reported.

Questions also persist over Iran’s post-Khamenei leadership, the role of American forces, and whether Congress should formally authorize the military action to uphold constitutional oversight.