Sen. Gary Peters (D-MI) also announced he will not run for another term in Michigan, a perennial battleground.

KXAN has mapped precinct-level results in counties across the state to get a better picture of how Texans voted in the U.S. Senate election.

The battle for control of the Senate is as tight as can be, and we're about to find out whether Republicans hang on to control of the chamber or whether Democrats can earn an unlikely flip.