It is the joke told by Sarah Palin on Saturday at the Gridiron Club that has spread far and wide. It was featured by many websites and news outlets including Politico and U.S. News & World Report. Here is how the Associated Press reported the joke: Palin targeted her hosts, Democrats and Sen. John McCain's campaign staff, as well as herself.If the election had turned out differently, she said, "I could be the one overseeing the signing of bailout checks and Vice President Biden could be on the road selling his book, 'Going Rogaine.'" Biden has sparse hair. For your...