FILE - In this Dec. 13, 1972 file photo, the newly-elected Democratic senator from Delaware, Joe Biden, is shown on Capitol Hill in Washington. In May, after Joe 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, File)