Ten worst Americans?

From All Things Beautiful, a challenge:

As a post Christmas/Hannukah Challenge, I invite the Blogosphere to name 'The Ten Worst Americans' in the last, well it will have to be 230 odd years! Considering most on the Brit list are Aristocrats (including Jack The Ripper, believed to be somehow linked to The Prince of Wales), we may have our job cut out for us.

My ten worst Americans:

Benedict Arnold; Aaron Burr; and Jimmy Carter times seven.