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.

Congressional leadership: Republicans elected South Dakota Sen. John Thune as the next Senate majority leader. Meanwhile, Mike Johnson, the current GOP speaker of the House, was nominated to retain his role, with an official vote to come next year. [AP/USA Today]