He should step down. Instead he's ruining his party on the senate floor. The man is unfit due to his sickness. Common sense would say that an interim senator should replace his spot because of poor health.
"Ruining his party"? McCain?
Did you not catch any of the 2016 campaign?
You'd better sit down for this as I have earthshakiing news.
John McCain isn't in office to represent a "party". He's there to represent the citizens of Arizona.
It's in this newly-discovered obscure document called the "Constitution". You could look it up. That arcane document, which actually establishes Senators ---- says nothing about "political parties". Anywhere.
Now if you think he doesn't belong in that position ---- move to AridZona and it will actually be your place to comment.
Until then ---- communicate with your own representatives, quit trying to meddle in other people's, and get over this childish fixation on "political parties".