You could add Feinstein, Grassley, Shelby, Johnson, Waters and not to put too fine a point on it...Biden and Trump. I know Trump is not in office, but he just announced his candidacy. That fat old guy must have some incredible genetics not to have died from a heart attack yet.

I don't believe in term limits or age limits, but a cognitive test like many places have to renew your driver's license would have weeded out some of these folk.