"What do a bullhorn and a baseball have in common?" Thompson asked, and soon, we were told: The defining moment of the Bush presidency came not only on Sept. 14, as previously thought, when Bush stood at Ground Zero and proclaimed that the terrorists who struck New York and Washington would "hear from us." It also came a month later, when Bush marched to the mound of Yankee Stadium and boldly, decisively, resolutely tossed out the first pitch of the World Series. "What he did that night, that man in the arena, he helped us come back. That's the story of this presidency," Thompson said, as I wondered how many takes it took Thompson to do this without giggling. You keep pitching, no matter what, Thompson said. You go to the game, no matter what. "You throw, and you become who you are." The delegates went nuts. Remember that time Osama chased Bush's slider in the dirt?