Jonathan Martin reports

Mike Huckabee and his top advisers insist that he's thinking seriously about running for president, but he's doing little to put together the sort of organization needed to mount a campaign. The latest evidence: Chip Saltsman, his campaign manager in 2008 and one of his closest confidantes, has accepted a job as Chief of Staff for freshman Rep. Chuck Fleischmann (R-Tenn.).  In an interview, Saltsman said his taking the job should not be read as an indication about Huckabee's intentions.  "I have a Notre Dame clause in my contract," he quipped. "So I can leave if a presidential comes a calling."  That's to say that if a once-in-a-lifetime opportunity came along - in football it would be coaching the Fighting Irish, in politics it's running a White House campaign -- he'd be able to take his leave.