Reuters:

WASHINGTON (Reuters) – A loud mixture of cheers and boos greeted Vice President Dick Cheney on Tuesday as he threw out the ceremonial first pitch at the Washington Nationals baseball game.
Cheney, wearing a red Nationals warmup jacket, tossed a pitch that reached Nationals catcher Brian Schneider on one bounce.
The vice president, whose popularity is slumping along with that of President Bush, walked out on the field to cheering and booing from the near-sellout crowd. The boos appeared to be little louder than the cheers at RFK Memorial Stadium.
On the field with him were three U.S. servicemen, two of whom had been wounded in Iraq and a third who was injured in Afghanistan.