Here's a recent line from Joe Biden:

"Look, John's last-minute economic plan does nothing to tackle the number one job facing the middle class, and it happens to be, as Barack says, a three-letter word; jobs. J-O-B-S."  

     I didn't major in math while I was in college, but if my counting is correct, JOBS has 4 letters.  Well, this got me thinking, which got me searching, and I found a link you might enjoy.  It's Joe Biden's top 5 gaffes of the Presidential campaign.  If you think these mistakes are being exagerated or made up, there are also video clips for your viewing pleasure. 

http://politicalhumor.about.com/b/2008/09/21/top-5-joe-biden-gaffes.htm