I will add that I believe every Republican senator who was successfully re-elected in 2016 won his or her own state by a larger margin than Trump's victory in those respective states.
Look at Charles Grassley, for heaven's sake. How many other U.S. Senators are there today who were actually around not only for the Clarence Thomas debacle in 1991, but the Robert Bork charade four years before that? Three that immediately come to mind are Grassley, McConnell and Orrin Hatch. Patrick Leahy might be the only Democrat left from 1987.
Lisa Murkowski's FATHER was one of Alaska's senators back in 1987!
Gotta admit........Grassley's "Ol' Farmer Brown" routine has been very successful for him.
But maybe not for this nominee.