Candidates Work the Crowds at Iowa State Fair

Presidential frontrunners Donald Trump and Hillary Clinton joined the festivities.
2:07 | 08/16/15

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Transcript for Candidates Work the Crowds at Iowa State Fair
And to politics now, all eyes on Iowa this weekend. The state fair drawing presidential front runners for some politics and a lot of fried food. But one candidate coming in for a landing like no other. ABC's Devin Dwyer is right there covering it all. Reporter: Donald Trump arrived at the Iowa state fair like a billionaire would. The only presidential candidate to arrive in a helicopter. A never before seen Iowa attraction. Who wants to go first? Reporter: Trump announcing free flights for kids as he promised to unveil new specifics tomorrow on his signature issue of immigration. You are going to love me in terms of immigration and illegal immigration. We're building a wall, it's going to be a wall that is not -- nobody's going through my wall, trump builds walls, I build walls. He's bold. Speaks his mind. Reporter: The republican front-runner's grand entrance captivating iowans. Mobs flocking to the golf cart taking trump to the famous 600-pound butter cow. Hillary Clinton was also there, though she and trump never crossed paths. How are you, bill? Reporter: The democratic front-runner who lost Iowa in 2008 back at it, doing what iowans do. Petting the animals, sampling the pork. Addressing, sort of, the controversy about an FBI investigation of her private e-mail server. This is the usual partisanization. Which I may have just made up a word. Reporter: What's the biggest mistake you think you've made so far in the campaign? I'm just having a good time. It's mostly, for me, a continuing conversation with the American people. Reporter: Today's enjoyment coming mostly in stick form. And amidst the hay beaabales, where cattle are shown up and sized up just like the candidates. And trump and Clinton spent an hour here at the fair, braving the crowds in a true presidential right of passage. Cecilia? Sure is. Devin, thank you. And one of those getting a ride on trump's helicopter, our own Martha Raddatz. Reporter: You don't think this is a little much? No. Reporter: It's very trump, right? Yeah, it's me. I am who I am. It's good for the kids, the kids love it. You can watch Martha's full behind the scenes report tomorrow morning on "This week."

This transcript has been automatically generated and may not be 100% accurate.

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