If a republican party member were to so much as whisper that heretical thought, the person would be visited by some Trumpian operate and told to shut up.
If the whisperer were are candidate for something or another, any support from the party would cease immediately, and the opponent, whoever he is (and I am saying HE deliberately) would be awash in Trump contributions.
If the whisperer were a county or city official (not running) there would pressure, lawsuits, annoyances, innuendos – anything to shut the person up. Think of how the Trumpies deal with the whistle blowers at agencies around Washington.
And if all else were to fail to shut the person up, the guys with brass knuckles would be sent.