Ed Rollins is going to be stepping back from day-to-day management of the Michele Bachmann campaign, and moving into a senior advisory role, he said in an interview.

Rollins said the reason for the change is personal – his health, and the rigors of a campaign.

“I wish I was 40 years old, but I’m not,” he told POLITICO. “I’m 68 years old, I had a stroke a year and a half ago. I’m worn out.”