I am assuming that Platinumguy means that this will be the first litmus test of Trump's power and influence after the election.
I think the reverse is true. After this most trump voters will move on. Yes, there’s always going to be a few holdouts, like the proud boys & others. They’ll make gatherings & protests. But the majority will move on. Wasn’t too long ago that the tea party was going to destroy the Republican Party & cause them to never win an election again.