He rode a remarkable and ahistoric wave back to re-election last week, one in which his allies expanded their majority in the House, and the Senate will return in January with Republicans holding the gavels.

On the heels of the general election last week, there’s another important vote on tap this Wednesday in Washington that will greatly impact what President-elect Donald Trump can accomplish during his four years in office: Republicans in the Senate will vote by secret ballot to choose a new leader.