He can be impeached and removed by the senate.....
What he committed is sedition....
You mean expelled or censured.
Ted the Fat Drunken Blovating Oaf wasn’t expelled or censured for talking to the KGB. So the likelihood of McCain being censured or expelled for talking out of turn to an ally is?
Though I do admit that McCain is so thoroughly disliked by his colleagues (The exception being Linda!) that it’s a little more possible then for the average senator.