Inside John Thune's quiet effort to keep GOP's Senate majority
Senate Majority Leader John Thune is fighting to maintain Republican control of the U.S. Senate. CBS News' Kaia Hubbard spoke with Thune about his leadership and behind-the-scenes work.
<p>Senate Majority Leader John Thune is fighting to maintain Republican control of the U.S. Senate. CBS News' Kaia Hubbard spoke with Thune about his leadership and behind-the-scenes work.</p>