He had the Republican numbers rofl

Though blacks, Hispanics, women and moderate voters consistently support either Democratic candidate when faced with Trump as the Republican alternative, there are two significant groups that Sanders wins over by much larger margins than Clinton and help him beat Trump by double digits: Republicans under 30 and Independents who do not lean toward either party.

I highly doubt these Republicans (and Republicans but too ashamed to admit it) would have done anything other than fall in line like they always have during election season.