and we know from my reporting and the reporting of my colleagues that donald trump has increasingly growing concerned about haley's rise particularly in new hampshire. you're seeing them pour millions of dollars into attack ads against haley in new hampshire and he's been escalating his attacks on haley throughout the past several weeks now and so if they think that the voters who are backing christie now, if he drops out of the race and those people go to someone like haley, that could be problematic for him. >> good point. >> david, are you surprised by how quickly, quickly, chris christie's calculation on whether he was staying in the race or not has changed? >> wolf, i'm not sure we know yet how quickly that calculation is. yes. i think every candidate is in the race until the end until the moment they decide they're not in the race anymore, and if you look at what the denial was about chris sununu, chris