FILE - In this July 12, 2012, file photo, Vice President Joe Biden addresses the NAACP annual convention in Houston. In May after Biden tripped up his boss by voicing support for same-s

 

              FILE - In this July 12, 2012, file photo, Vice President Joe Biden addresses the NAACP annual convention in Houston. In May after Biden tripped up his boss by voicing support for same-s
FILE - In this July 12, 2012, file photo, Vice President Joe Biden addresses the NAACP annual convention in Houston. In May after Biden tripped up his boss by voicing support for same-sex marriage while the president remained on the fence, there was speculation about whether the remarks were spontaneous or deliberate. But to those who know Biden, there was no doubt. He was just speaking his mind. (AP Photo/Pat Sullivan, File)