President Bush managed yesterday to extricate himself from the gaffe he made when he told the “Today” show on Monday that the war on terror couldn’t be won. He had told “Today” that he wasn’t sure if his grandchildren would be reading about Al Qaeda in the newspaper. “I don’t have any … definite end,” he said. He said of the war on terror, “I don’t think you can win it.” Yesterday he went on Rush Limbaugh’s radio broadcast to say that he probably should have been more articulate and to assert of the war, “We will win it.”