"I am doing what I want to do right now and I have no intention or any idea even of running again," Clinton told CNN last year.

But Trump, who himself toyed with a presidential run earlier this year before ultimately deciding to endorse Romney for the GOP nomination, lavished praise on the former first lady.

"Hillary ClintonHillary Diane Rodham ClintonChris Murphy’s profile rises with gun tragedies DNC, RNC step up cyber protections Gun proposal picks up GOP support MORE, I think, is a terrific woman," Trump said. "I just like her. I like her and I like her husband."

Trump added that Clinton had done a "good job" in her current role as secretary of State.