How many millions?
Lots of people divide their vote for various reasons. The Democrats have a far-left wing. I imagine many Dems split their vote a little to avoid voting for the fanatics.
Many years ago - when I was a democrat - fraud was done I was told about... an accident happened.
Florida was using punch cards for voting and ‘after hours’ the people who didn’t show up to vote were being ‘voted’. (this is how ‘the dead are voted - they never show up)
The way fraud is done with that system is an ice pick is places on the ‘chad spot’ and hit with a hammer. To keep the fraud from being obvious other races are often ‘voted’. Well, one idiot got it wrong and the chad spot for a down ticket Republican was included. AND the guy was elected. Dems were panicked someone would notice the black community had ‘elected’ a Republican - but time went by and no one noticed and the story’s in the dust bin of history....