"When we stand up for the rule of law ... and say ‘This decision is fundamental, and we have rules that we are going to follow so we can make a good decision,’ that's a message of strength,'' Kaine said. "If we're to order our young men and women ... to risk their lives in war, it should be on the basis of careful deliberation by the people's elected legislature and not on the say-so of any one person.''