Same way he pulled off amnesty, just do it and see if anyone has the balls to try and stop him. No controlling legal authority. I wouldn't bet against him.
Obama shutting down the election would be quite a feat.
I agree with Jim Noble. Jim says he’d be arrested if he tried. I think at the very least he’d become a subject of ridicule and the object of LateNight TV jokes.
As has been pointed out, the November 6th election is actually 51 separate elections.
Each of those elections also has down ballot candidates that have nothing to do with the Presidential contest.
Add to that local referendums and ballot initiatives and I think you can begin to see the magnitude of any undertaking of what you suggest.
Let’s just stick with beating him at the ballot box because the election will take place.