the GOP arguments are all based on process and, like Rubio said, the impact impeachment would have on the country...NOT the actual validity of calling legit witnesses or trump's actions. so fucked.
also, I give little/no credit to Susan collins, she probably spoke with Murkowski and knew they wouldn't have four GOP witness votes, which allowed her to vote yes on witnesses. she always professes to be a independent thinking moderate who bucks the party line, but when it matters she never actually steps up. I really question whether she would have voted for witnesses if Murkowsi had as well.