President Barack Obama practices his pitching with trip director Marvin Nicholson in the Rose Garden of the White House, March 31, 2010. The President threw out the ceremonial first pitch on opening day of the baseball season prior to the game between the Washington Nationals and the Philadelphia Phillies.

President Barack Obama practices his pitching with trip director Marvin Nicholson in the Rose Garden of the White House, March 31, 2010. The President threw out the ceremonial first pitch on opening day of the baseball season prior to the game between the Washington Nationals and the Philadelphia Phillies.