dramatic, of course. skipping out on the soapbox, coming in on a helicopter, and huge crowds were scrambling to the front-runner here. apparently he was trying the fried foods and giving chopper rides as you see the helicopter there. he did address the hillary clinton e-mail controversy. jeff has more. tell us about that conversation. >> reporter: good morning, christi. >> good morning. >> reporter: we did catch up with donald trump just for a minute as he walked through the iowa state fair. of course, he's been talking about this issue a lot, about the private e-mail server that secretary hillary clinton has agreed to turn over to the justice department. an issue dogging her campaign. she said it's simply a parseson attack. she said there's no there there. we caught up with donald trump. let's listen to what he said. >> it's a criminal problem. you look at general petraeus.