Man from Modesto...what in the world?
Anywho, to answer the question, the worst president in the United States has to be George W. Bush. I know that might be a little biased, but I think Clinton left the US in a pretty great state, and Mr Bush just came along and destroyed everything Clinton had tried to fix. Sure, there were some events that Bush couldn't predict, and sure he made mistakes, the same as all presidents. However some of his mistakes are just to grave to ignore.