Civil war and ensuing panic + world war post election?

I don't think there will be a civil war.

I think Trump will win, and then he will use his powers to put down the insurrection with the military. Everyone will cheer as the commie scum is routed, and no-one will complain about the loss of liberties that seemed "necessary" to do the job.

And that was the entire point of riling up the commie scum useful idiots in the first place.

When the war start? after all the ammo runs out?

The first one was 4 years long .I think the second one will be shorter provided no other country gets involved.