Democrats huddle to draft impeachment charges against Trump

Buttigieg pledges billions to curb education disparities

Saudi airman may have become radicalized before U.S. Navy base attack

United States and Iran swap prisoners in rare act of cooperation

U.S. defense secretary can't label U.S. base attack 'terrorism' at this point

Factbox: Reactions to Iran-U.S. prisoner swap

Factbox: Rise in U.S.-Iran tensions precedes prisoner swap

U.S. hopes U.S. citizen's release means more progress possible with Iran

Saudi airman in U.S. for training suspected in deadly shooting at Florida naval base

U.S. health spending recovers after two slow years: CMS