The House is set to vote this evening on a resolution to limit President Trump's authority to strike Iran. President Trump is operating, like his recent predecessors, off of expansive war-making powers granted by Congress in the wake of the 9/11 attacks. Many lawmakers say it is time for Congress to claw back some of that authority, granted in part by the Constitution, but the politics of voting on warfare can be complicated.This episode: congressional correspondent Susan Davis, congressional correspondent Kelsey Snell, and senior political editor and correspondent Ron Elving.Connect:Subscribe to the NPR Politics Podcast here.Email the show at nprpolitics@npr.org.Join the NPR Politics Podcast Facebook Group.Subscribe to the NPR Politics Newsletter.Find and support your local public radio station.