Frankly it's not only Mitch, it's also Feinstein and Grassley and Trump and Joe Biden and many others.
So.... how do we go about doing this?
Because naturally THEY themselves refuse to retire on their own. And old people are not only stubborn but oblivious to their age. My 90 year old father was still believing at the age of 90 that he could climb a ladder onto the roof to fix a shingle. And he would have tried if we let him. Naturally, he'd be dead now. Or when his drivers license was taken away because he could no longer stay in his own lane, yet even with that he still today talks about wanting a car.
If people are going to live longer because of modern medicine, that doesn't mean they will retain their mental capacity. The body may hold out into the 90s but the mind will show its age.
I think we have to pass laws or a law not only to establish a cutoff age for running for office, but establish an age for mandatory retirement for all politicians. That includes for senators, house members, congressmen and women, presidents and even governors. Just exactly as we should have term limits we need age limits. We need both.
Maybe it could be linked to a valid drivers license. If you can't drive then you can't hold public office. Now, if Mitch McConnell were driving down the freeway and went into one of his zombie moments, he'd kill himself and kill who knows how many others. So then.... no license, no running for office. And for those already in public office, mandatory driving test every year. If you fail the test then you're out. If you fail common sense judgment to drive on the road you surely can't decide common sense political matters. RiGhT DoNaLd???