Tell me about it. How could anyone top Jimmy the Peanut.
The War on Terror could easily be called "The War We Have To Fight Because Jimmy Carter Put The Mullahs in Power In Iran". If that had not have happened the War on Terror would have Iran on our side. Consider the consequences of that and tell me again who the worst president in history is.
I'd go even further and say there's no 911 if that hadn't happened! Iran has been the Number One sponsor and exporter of terrorism since the Ayatollah took over.