Apparently, the Romney campaign does not understand Venn diagrams:
Just fun stuff. Hey, I love charts. I have frequently borrowed from http://ilovecharts.tumblr.com/. Perhaps the Romney folks should study that tumblr account for a while to figure out how to do some proper graphics.
Of course, this only matters for humorists, persnickety academics, and folks who already will vote against Romney. Getting Venn Diagrams wrong is hardly going to cost him votes among the undecided or those already in his camp. After all, if people are willing to believe that the guy who, um, started Obamacare in the first place as a governor now is the best guy to oppose Obamacare, they are not going to notice his graphic mistakes.