Because it's a secret vote, we don't know exactly who voted for Thune to be the Senate Majority Leader, but we know a few of his public supporters.

John Thune’s victory on a secret-ballot continued the long tradition, in both parties, of elevating small-state senators to the top jobs, banding together for self interest.

Kentucky Sen. Mitch McConnell announced he would step down from his leadership post earlier this year, ending his historic run.