Trump should have stayed out of it.
I think the GOP would have lost anyway because of the abortion issue. McCormick was for a no exceptions ban, so the returns would have probably looked more like the Mastriano race.
Trump took the Court out of the mainstream as POTUS, but now he is a private citizen. The problem isn’t Trump so much as that the GOP seems to have been co-opted once again (last time was Libertarians, this time its Catholics), so we get to play that game again. The Libertarians got the deregulation they wanted, which resulted in the crash that nearly took out the world’s financial market. It looks like this time the game is to relegate women to second class citizenry as the opening gambit. The other thing I know is that the church is a huge fan of open borders and of compliant politicians that the priests can threaten with damnation if they don’t get their way, so we’ll see if all of that happens or not. It’s early days.