Donald Trump Preps for GOP Debate Showdown

ABC News' Tom Llamas on Donald Trump's plans for the first GOP debate and who else will make the stage.
2:12 | 08/02/15

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Transcript for Donald Trump Preps for GOP Debate Showdown
vice president later, but now, to the republicans and the upcoming debate, it's the first big test for front-runner Donald Trump, as "The New York times" put it, the stakes are in a word, huge. Here's ABC's Tom llamas. Reporter:s front-runner trump not studying but spectating, taking in a golf tournament in Scotland. At a course he just happens to own. As far as preparing for the debates, I am who I am. I have never debated before. I'm not a debater. Reporter: The brash billionaire surprisingly downplaying expectations for his own performance at the gop showdown. Maybe I'll do terribly. Reporter: Who he'll take on is still up in the air, only the top ten candidates polling the highest in five of the most recent polls qualify for the main stage. According to an ABC news analysis, if a debate were today, some of the notable names would be left out of the main event. Rick Perry and Rick santorum. Meanwhile, candidates sharpening their attack lines. And if this deal goes through, the Obama administration will become quite literally the world's leading financier of radical islamic terrorism. Reporter: But, are they ready to tangle with trump who's surged to top of the polls by winning some passionate fans? Like, those at this week's Bloomberg townhall. He's successful. I want to be a billionaire. Tell me what you think a trump presidency would look like. Classy. To the American people, it would be a presidency of hope. Reporter: Some analysts like fivethirtyeight Nate silver says this may be as far as trump goes. Trump will tout his top-line Numbers and say, I have 20% of the base. But, in the end, 20% is not enough, and when half of your own party dislikes you, you don't have very much room to grow from that 20%. Reporter: Jon, one of trump's main talking points is that he'll win the presidency. That he can beat Hillary Clinton. In recent polls, Clinton has a double-digit lead over trump. Thanks, Tom.

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

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