The title says it all. I’m curious if there has ever been a party nominee that realized at some point before November that they badly miscalculated their running mate and dropped them for someone else. Though I prefer McCain to Obama I will not vote for him based solely on his runningmate and I’m sure there are more people like me out there.
Also, somewhat related, has a major party nominee ever dropped out of the race after the convention but before the election for whatever reason? What happened? If that has never happened what would happen if it did?