Trump has at the minimum 3 years to go. He needs to bring Christie and Rudy in to help drain the swamp. Either of those 2 can tell the public that McCain needs to seek the medical help he needs resign his seat and we get to work. McCain is hanging on as an obstructionist. Also, Kasick will run as an Independent 2020 (Ross Perot) to take votes from Trump.
It’s sad, so sad that some of our supposed allies work against us.
Chances are that McCain will not be with us in a couple of years - although Jimmy Carter did prove the mortality stats wrong.