I think that once some of the most heinous perpetrators are exposed, and if House votes on impeachment are public record, you will not see much in the way of loyalty along party lines. The writing will be on the wall, and anyone who throws their lot in with the accused is going to go down with them. If not in the impeachment proceedings then most certainly in the next election.
Caveat Emptor. Disabled vet with a hot wife wants your money to build a wall you already paid for and people still threw money at this guy.