and john seigenthaler told me, when we talked about this that the only thing that schlesinger wanted im to change when he saw john's manuscript was that he thought that he had slighted the what is known as the all of mexico movement, the idea during the mexican war when we were sort of in logger heads, we'd gone all the way to mexico city but they still wouldn't retreat or negotiate, that we should just take over the whole country. and schlesinger believed that that was a more serious movement at that time than was in seigenthaler's book, and so john went back and put it in. and my research indicates that it was a significant bi-play during a certain point of the mexican war. but, no, i think john has got polk exactly right. i do think that he would have gotten right into the acidic politics of today, although not so much in terms of face-to- face confrontation because polk was not good at that but he was very good at attempting to outmaneuver his rivals behind the scenes and he loved doing that. >> just for a side moment, for those who say that today's politics are a lot more acidic