Longtime Clinton family political advisor James Carville isn’t counting Secretary Hillary Clinton out of the 2016 presidential race. “I always assume that if people run, they will run again,” says Carville, equating presidential bids to itches that can’t be scratched away.

But he dismisses talk that President Obama will dump Vice President Joe Biden for Clinton in a a long rumored move to shore up support among progressive Democrats.

“For average Democrats, if they dump Biden for Hillary, they won’t like that.”

Carville backed Clinton’s 2008 bid against Obama and Biden, when he was a Delaware senator in the early Democratic primaries, but called Biden an effective veep.

“Most people view Biden as doing a good job,” he said, adding that the Democrats will likely have a “pretty strong field in 2016.”