what does " deliver horseback opinions "mean? Johnson then confided that he was worried about the oath and uncertain where to take it. Bundy explained that he had his hands full at the moment; he was monitoring the eastward progress of the returning Cabinet plane. Furthermore, he did not lightly deliver horseback opinions, especially when the terrain was strange and, in this instance, extremely forbidding. Macs undergraduate major at Yale had been mathematics. He wanted life to be that exact. Presidential oaths clearly belonged on someone else's desk spike. He politely suggested that Johnson "leave that to the Justice Department." He was right. Oaths are to Justice what weapons are to Defense. Bundy's counsel, like Bundy himself, was flawless. And although the Attorney General, like the new President, would have preferred to let someone else field the question, Justice had the answer. As Johnson talked to Bundy, Nick Katzenbach had checked back with Bob Kennedy and confirmed his earlier opinion.