What if voting him out doesn't work?

1. He cheats (via disenfranchising, rigging electronic voting machines, or use private mail companies to steal mail-in ballots, etc.)

2. He doesn't leave and protects himself with militias, police, the military(as he continues to replace high ranking officers with loyalists)

Or

3. Say the election was rigged and take things to the Supreme Court, which from what happened in Wisconsin may not end in our favor.

I say we have to prepare to do more than just vote in large numbers, we must put our eggs in two baskets, with an equal number of eggs in each.

This might be blunt, but we don't live in a world of angels, it's not perfect, and so we have to be ready for the worse, because in this world the worse can happen.