I don’t see a road to a Pence presidency, even aside from voter fraud. Even if, say, Trump doesn’t run, and the GOP establishment rigs the nomination process, Pence will lose the hard core MAGA base and will reverse Trump’s gains among minority voters. Barring a serious recession or an unpopular war, Harris would win in 2024 without much cheating needed.
Pence is in political “No Man’s Land”, he pissed off the Trump supporters, and the Trump haters will still hate him anyway.
You have a much more optimistic view of the future than I do. I do not believe Harris or Slow Joe will still be on the scene in 2024 and I anticipate a backdrop of economic misery in 2024. Either there will be only a sham election of the Left will reap the whirlwind they have sown.