That's because they ignored key states. So money spent in the wrong place does you know go. Bloomberg might be smarter than Hillary on that ploy.
Hillary was the only candidate who could manage to lose to Trump.
I don't think he will get the nomination. I do think if he gets it, he would win. The rationale being Trump's own unpleasantness may motivate and switch those state that HRC lost.
The gun issue is already baked it, so not a factor - sorry NRA. You ain't convincing neutrals to go Three Cheers for the RKBA. The last election was a squeaker despite the electoral totals. It was the tight numbers in the states mentioned that should terrify Donald J. Trump.
Anyway, we just switch rich overlords and the peasants can get all excited about social issues, bread and circuses.