NPR's Steve Inskeep asks Rep. Adam Smith, D-Wash., top Democrat on the House Armed Services Committee, about U.S. policy on the conflict between Israel and Iran.

After the U.S. killed a commander of an Iran-backed militia in Baghdad, pressure is mounting on Iraq's government to expel America's 2,500 military personnel.

Before the U.S. pulled out, the deal gave Iran money and gave the world assurances that Iran wasn't trying to build nuclear weapons.