FILE - In this April 7, 1969 black-and-white file photo, President Richard M. Nixon throws out the ceremonial first pitch in Washington as Baseball Commissioner Bowie Kuhn, second from left, and Washington Senators Manager Ted Williams, and others, look on. A hundred years ago, a portly right-hander, President William Howard Taft threw out the first pitch at a Washington Senators game, a weak lob from the stands to the great Walter Johnson. On Monday, the Nationals bring in the left-hander, President Barack Obama. (AP Photo, File)