I was mentioning this to my wife yesterday. The hillary “rank and file” voters are generally society’s leaches. They are lazy, generally speaking. That would suggest to me that if they think she has it in the bag they won’t bother to vote. They’ll just ingest their drug of choice, flip on the tube and watch Hillary cream Trump.
Except she won’t because they didn’t vote.
They can be bused anywhere and have multiple weeks to pull this off. Keep in mind there were about about same number of total Republican as total Democrat votes in the Primary (28 Million). Trump had about 13 Million. Hillary about 15 Million.
Parties know if someone has voted yet or not. Democrats go door to door/call to be sure they get that person to vote. If not, they probably have someone go in and vote for them (assuming ID is not needed).
I have no doubt Democrats will show up in large numbers... it is what they do.
Your description of the “rank and file” pretty much hits the nail on the head.