Has there ever been a more embarrassing former president than Jimmy Carter? Yes...William Jefferson Clinton. Not only an embarrassment but a historic traitor.
I've pondered the question of who was worse, Carter or Clinton and have concluded that it's just one of those things I can't allow myself to dwell on, I'd go nuts trying to decide.
A big factor though, is the fact that we had Clinton for 8 long years and Carter only for 4.