I don’t know if this could really qualify as voter fraud, since no election actually took place. It was a non-binding straw poll. There was apparently a completely separate vote to elect delegates who are also not bound to any particular candidate.
I don’t know if there was any tampering. (No, I didn’t watch the video. I have read a few articles about it. I know reading might be a little harder for you, but it goes a lot faster for me, so I don’t do political videos.) I do know that the whole “cancel the meeting cuz there might be a storm coming” is dubious. We’re talking about Maine. In the winter. There is ALWAYS a storm coming. Though they have had a pretty mild winter. No snow on the ground in central-coastal Maine right now, which is unheard of the middle of Feb. The harbors aren’t frozen over. They’re more likely to cancel an indoor meeting because there ISN’T a storm, so they can go snipe hunting or shoot at visitors.
To answer your last question, yes, votes still count. Since this wasn’t really a vote which meant anything, no harm, no foul. Move on to AZ and MI.