Watch a Democratic Senator's Embarrassing Geography Fail on the Senate Floor

Thursday in the U.S. Senate, debate over the Immigration Bill continued and Louisiana's Mary Landrieu took to the well to speak in support of what she called a "smart fence." During her presentation, Landrieu also singled out South Dakota Republican Senator John Thune for proposing that a fence be completed before any illegal alien is granted a path to citizenship.

While calling Thune's fence a "dumb fence" and claiming that the one she and Sen. McCain endorse would be a "smart fence," the senator exposed an embarrassing lack of knowledge of U.S. geography when she said;

"A smart fence which is what Sen. McCain and I want to build — since he’s from Arizona, I think he knows more about this than the senator from South Dakota who doesn’t have a border with Mexico, but only Canada and that is quite different."

Here's a clip of her railing against the "dumb fence":

And here's the geography mistake:

Senator Landieu's flawed knowledge of U.S. geography may have been predicted by a 2007 Miss Teen USA contestant who was asked why 1/5 of Americans can't locate the country on a world map: