But when it came time to run, he had to calculate his chances, of course. I think he was just a better fit with the Republicans by then (the establishment ones didn't agree). Either way he was going to have a face off with Hillary which I'm sure he knew. If he had run as a Democrat, which he could have decided to do anyway even with the same platform, Hillary had the DNC stacked in her favor.
I don't know what he would have done but on the eve of the election, I think Ivanka warned him that he more likely wasn't going to win. I didn't think he was either, and could hardly believe it watching the returns as the tide turned in his favor. He made political history, maybe in a way no one ever did before.
Would Bernie really have beat Hillary it it had been fair? I'm not sure he would.
One sure bet, after 8 years he’ll never be a Demonrat again.