Extra pre filled in ballots are already printed in case Kasich neefs them, voters don’t even need to show up for him.
If he’s a cheat, he owns the state apparatus;
The SecState is repub.
The AG is repub.
The Supreme Court is repub.
The House is repub.
The Senate is repub.
Trump will not win a real two point race, even though that’s what the final numbers might say if he does win.