I doubt the ballot closes in most states by August in a General election year.
If Trump could prove he was cheated out of his nomination, the sore loser laws might not apply.
If he wins 80% of the primaries and still doesn’t have enough delegates locked up, it would certainly toss the Republican process into question.
He could probably challenge the sore loser laws.
At least we know we back a fighter and I am sure he already has his lawyers all over this.
Remember, the SC answers to the elites.