The question isn’t whether of not Trump will be the nominee. It’s how will he (or anyone not Biden) win against the same thing he was up against last time? DeSantis got rid of the corrupt election supervisors, but I haven’t heard of any similar actions taking place in the blue and purple states. This administration certainly isn’t interested in a free and fair election.
This whole Republican drama may be moot. Democrats gained two governors in 2022. That means 2 more states as potential accessories in voter fraud.
Even having a Republican Governor is no guarantee against election fraud. Both Arizona and Georgia had Republican governors in 2020, and neither one of them did a thing to prevent their states from being stolen or to help correct it after the fact.