"I fought against Richard Nixon's war," John Kerry roared the night of his breakthrough in the Iowa caucuses. "Nixon's War" has become a signature slur of Kerry's campaign to win the office Nixon held when Kerry was rubbishing Vietnam and the behavior in battle of the American soldiers who fought there. In April of 1971, I was in the White House when Vietnam Veterans Against the War camped out on the mall, cursed the Nixon Administration, and threw their medals over the fence. John Kerry spent that week with friends in Georgetown and testified before the Senate Foreign Relations Committee....