Democratic candidate Joe Biden is failing. The gaffe train is moving a mile a minute and only seems to be picking up steam. During a campaign stop in South Carolina on Friday, the former VP told a crowd of supporters that he was looking forward to appointing the first African American woman to the U.S. Senate. "Well, I'm looking forward to appointing the first African American woman to the United States Senate," Biden said as the crowd erupted in cheers. Biden supporters must be so used to the candidate's gaffes by now that they are no longer fazed by them....