New Senate Majority Leader John Thune (R-S.D.) said in an interview aired Sunday that he's willing to tell President-elect Trump if he thinks he's wrong. The big picture: Trump has a storied history of rocky relationships with some Congressional leaders,

Senate Majority Leader John Thune said he's committed to helping Donald Trump "achieve success" when he returns to the White House.

Senate Majority Leader and South Dakotan John Thune was on CBS’s Face the Nation Sunday morning. In the nearly 20-minute interview, Thune was asked a variety of questions about his vision for America and how he will serve the American people as the new Senate Majority Leader.