Have you heard about how Al Gore claimed to have invented the Internet? What about how Iraq was responsible for the attacks on the World Trade Center? Or maybe the one about how George W. Bush has the lowest IQ of any U.S. president ever? Chances are pretty good that you might even believe one (or more) of these claims. And yet all three are false. At FactCheck.org our stock in trade is debunking these sorts of false or misleading political claims,