“He hasn’t said that directly to me,” the adviser was cited as saying. “The only reason I'm hesitating at all is because, yeah, if Bernie were running away with it, I think maybe we would all have to say something. But I don't think that's likely. It's not happening.”
Obama said earlier this month that he would support whoever is nominated by the party, comments his spokesperson also referred to.
“Look, we have a field of very accomplished, very serious and passionate and smart people who have a history of public service, and whoever emerges from the primary process I will work my tail off to make sure that they are the next president,” said the former US leader.
A close adviser argued that Obama, who has remained silent amid the Democratic races so far, would not make any comments against a candidate.