Donald Trump Tailgates at Iowa College Football Game

ABC News' Mary Bruce and Martha Raddatz track the latest news from the 2016 presidential campaign trail.
4:36 | 09/13/15

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Transcript for Donald Trump Tailgates at Iowa College Football Game
It's your voice, your rate. Donald Trump was out campaigning before a big college football rivalry game and just days before this week's second republican debate. ABC's Mary produce is covering all of the action, she has the latest for the white house this morning. Reporter: Good morning. It was all about football yesterday in Iowa but the real spectacle was watching those republican candidates at that tailgate, it was clear from the second Donald Trump showed up who was the fan favorite. Donald Trump tapping in the fans at a tailgate in Iowa. Leading the republican pack for president. Inside the stadium it was Iowa versus Iowa state. Outside, it was trump against the rest of the republican field. Carly is surging, she's got 3%. I hear Ben, who's a nice guy, Ben Carson, a very nice man, he's surging but way behind me. Reporter: The front-runner heading out new hats. But the same, old zingers as he heads into this week's debate. Someone will attack. Rand Paul will attack. Reporter: Paul was there, taking shots. Went a little bit easy on Donald Trump, so I told him now he's a fake consecutive. Reporter: Also tailgating in Iowa, Marco Rubio and Scott walker who's struggling to find a foothold, once seen as a potential front-runner walker is plunging in the key state. Meanwhile, Ben Carson rising quickly in second place. Wooing voters in South Carolina. Nearby, democratic Bernie sanders courted african-american voters whose support he'll need to compete with Hillary Clinton. We need an economy that works for all of us not just a handle of billionaires. Reporter: The Vermont senator, still in second, but gaining fast. Now, in just three days the republican candidacy will face off in their second debate and after 24 million viewers tuned in for the first one, this likely will be a and as of last night, all three STD to the hospital seek treatment. I have to ask you this, this has been a long, exhausting Se these firefighters, could exhaustion be playing a factor right now? Absolutely. Since the drought is in its fifth year, Cal fire has been on the front lines, literally ten months out of the year and now we'reeading into September burn season, where the fuels are completely Y, the Santa Ana will -- winds will start taking off in southern California real soon. Into December. Unless we get some significant rain. We thank you for joining us this morning. Now the question is, more, then the newcomer to the stage, Carly fiorina will need to stand out as presidential, as a strong voice. Most will challenge trump's policies not try to take on the personality. Right, lot of people will be watching Carly fiorina in particular. I want to ask about Hillary Clinton. Washington post with a headline this morning, the company who managed her private e-mail server has quote no knowledge of the server being wiped. Many of her private e-mails she claimed to have deleted could be recoverable. What does that mean for her campaign in. If they get more off that serber and one is work-related, that could start a whole new round of trouble for Hillary Clinton. Even if they don't, even though Hillary Clinton has now apologized for having that personal server this is not going away, there are thousands more e-mails being released over the next few months, the story is what is on those e-mails and the fact that hundreds have now been deemed classified or sensitive. Dan, this is not going away. The drip, drip, drip continues. Apology notwithstanding. Martha will have much more on the race to the white house. One-on-one with the rising republican presidential candidate Ben Carson who we just saw in Mary's piece. All coming up on "This week" later this morning on ABC.

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

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