We'll find out who has a spine and who doesn't on short order ..
But you are CORRECT -
Trump could have had a Devil's Triangle with the Pope on an Alter Boy and they wouldn't give two *****.
Corker was spineless when he voted for the spending bill and tax cuts despite opposing them. McConnnell said he had to pass them to keep the senate, so Corker got in line. I understand a person taking one for the party, but Corker abandoned everything he supposedly stood for during two or three senate terms. When the party abandons what got you to run, it's simply partisanship for the sake of power (and maybe Justices) to vote against your own position.
Flake's a little different. If Kavenaugh would have just admitted to being drunk at times in his youth, and possibly doing shit he couldn't recall, and just apologize for anything he did or anyone he hurt .... he'd been golden. But Kavenaugh has demonstrably lied about his past. For no reason I can see ...
Is that enough for Flake to maybe flip the Senate and remove any possibility of 5 votes after Thomas to find ANY abortion restriction const that isn't an abosolute ban? I dunno.