FILE - In this April 18, 1938 black-and-white file photo, President Franklin D. Roosevelt delivers the first pitch at the season opening Senator-Athletics battle in Washington. 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)