Labor unions say the Trump administration is using "arbitrary and capricious" orders in an illegal attempt to reshape the federal workforce. Georgetown professor David Super explains what that means.

INSKEEP: I always admired him ... Southern Democrats went off, held their own convention, nominated John Breckinridge of Kentucky who was more to their liking and there was even a fourth candidate ...

A regional jet with 64 people aboard collided in midair with an Army Black Hawk helicopter as it was approaching a runway at Ronald Reagan Washington National Airport on Wednesday night.

NPR's Steve Inskeep talks with Democratic Sen. Tim Kaine of Virginia about airport and air travel safety following the mid-air collision near D.C.'s closest airport.

Inskeep: John Thune, the new Republican Senate leader, said on NBC the other day that he believed there were more than one million people who were here without authorization, here illegally who ...

JOHN DONNELLY: We are now at a point where we are switching from a rescue operation to a recovery operation. At this point, we don't believe there are any survivors from this accident. INSKEEP ...

INSKEEP: A standard flight pattern ... The helicopter also went down. And John Donnelly of D.C. Fire tells us that they now believe there are no survivors after spending the whole night in ...