Listen to the latest episode of our weekly Under the Dome podcast for analysis of Sen. Thom Tillis’ big announcement.

North Carolina Senator Thom Tillis announced he wouldn't seek reelection. He'll leave under the notion that Donald Trump ran ...

Republicans hold a 53-47 majority and face united Democratic opposition and the defection of at least two of their members. If the Senate approves the bill, it heads back to the House, where votes are ...