i want to bring in cnn politics reporter eugene scott for a preview of tonight's event. eugene, we just heard from jeff zeleny about what hillary clinton might do differently leading into tonight. the big question is, what does donald trump do? i've heard from a lot of republicans who say they actually want him to stick to policy. he's been at his best in debates, they say, when he talks about trade. when he talks about issues. what do you expect to see from donald trump tonight? >> well, considering the amount of prep he's receiving compared to what has happened the last several days we do expect him to focus on trade because as you said, this san issue that you highlighted he has a lot of success with. this is an issue that voters are concerned with. and it's an issue that sur fashioned in the wikileaks e-mails that he's bound to focus on this debate. >> trade, national security, terrorism. the economy. these were things again and again voters have said they trust donald trump to try to fix, right? but he's been distracted.