Dan Sullivan

The senator from Iowa said he had been isolating since announcing his exposure to the virus on Tuesday. He is third in line for the presidency.

These are the 13 races that will determine control of the Senate in the next Congress. To win control, Democrats would need to net-gain four seats, or three seats plus control of the White House.

Regulators, and sometimes the public, still have a tough time getting a handle on just what Facebook is. And that makes it difficult to determine just which laws should govern it.

The Senate voted Tuesday to lift a 2016 ban on certain hunting practices — like trapping and aerial shooting — on national wildlife refuges there. Now the bill heads to President Trump to be signed.