U.S. Senate Republican Leader Mitch McConnell's chief of staff will step down temporarily today to take a more active role in the Kentucky lawmaker's re-election campaign as a senior adviser. Josh Holmes says he will also work with the National Republican Senatorial Committee on the GOP's efforts to win enough seats to take control of the Senate next year.
McConnell, seeking re-election to a sixth term, faces a challenge from Louisville businessman Matt Bevin in Kentucky's Republican primary next May. And Democratic front-runner Alison Lundergan Grimes, Kentucky's secretary of state, is seeking her party's nomination to vie for McConnell's seat. Holmes had left McConnell's office temporarily previously. In 2008, he did it to work on McConnell's re-election. And in 2010, he did it work on mid-term elections.