I'm sure that there are members of Congress that are firewalls. McCain would've been one. Adam Schiff, Mark Warner, Pelosi, Feinstein, Paul Ryan, a number of Republicans that are leaving office. Maxine Waters, that Houston pedo buffalo and the Florida rodeo clown, as well as Al Green. Basically, 'those who cry loudest'.
When the compromised Republicans are replaced by a good crew, things will change dramatically. Trump didn't start the Presidency with his party in control of Congress; he started with enemies, enemies pretending to be friends, and a small core group of good people.