Sen. Thune Aims to Shore Up GOP Leader Job

Sen. John Thune, R-S.D., is doing everything he can to become the leader of the Republican conference. Thune, who serves as Minority Whip, is running against Sen. John Cornyn, R-Texas and Sen. Rick Scott, R-Fla., in the race to succeed Sen. Mitch McConnell, R-Ky.