The sun is setting in Mitch McConnell's time as Senate GOP leader, a position he's held for almost two decades. As he prepares to step down from that role, some of his fellow Republicans are setting the stage for the next generation of leadership.
It remains unclear who has the greatest shot to succeed McConnell, but some of the top contenders include Sens. John Cornyn (R-Texas), John Thune (R-S.D.) and Rick Scott (R-Fl.)
