Trump Officials Admit 'Missed Opportunities' at First Debate Against Hillary Clinton

Despite Trump's assessment that he won the first debate, senior campaign sources say they should have held mock debates to better prepare him.
2:50 | 09/29/16

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Transcript for Trump Officials Admit 'Missed Opportunities' at First Debate Against Hillary Clinton
Major development in the race for president tonight Donald Trump's team of short time ago acknowledging he must now change how he prepares for the next debate. ABC's Tom numbness in Wisconsin we've new reporting tonight. Tonight Donald Trump's campaign admitting real missed opportunities. At that first debate. Put on stage and I want trump sounding confident as ever. You know we had to debate the president. And every single online poll had we were winning by sometimes a landslide. Those polls unscientific and behind the scenes from tower tonight senior campaign sources acknowledge trump should have been better prepared. That they should have held mock debates that. That they should have been ready for questions about women and about his discredited effort to prove President Obama was born outside the US I think I did a great job. Well just listen to what you heard. From one source said believe the Brooke for issue was quote well within the past the eight say they were also shocked trump never went after Clinton. On issues like Maine Ghazi. I don't himself says he singled hard enough after Clinton I was cell holding back I didn't want to do anything to embarrass her. But he wasn't talking about when does he beer. Trump alluding to the fact he didn't bring a Bill Clinton's affairs on the debate stage and I didn't want to do with Giles who I think is a very. Wonderful young lady Eric trump says his father deserves credit. He really took the high ground where he had the opportunity do very very low I think that took a lot of courage. But trump hasn't ruled out going their next time even though when the past trump has said Bill Clinton was a victim himself. Tonight at least trump keeping the focus on Hillary Clinton hitting her hard on her help. You see are the days off that Hillary tax. Don't. Know. Where. It's. And then she can even make it to a cars and a tough. All those layoffs. Right wrong DeVon six yard. She won't be campaigning today. She won't be campaigning today in what Clinton supporters noticed trump himself this group lead at Monday's debate there. But he insists he did have a polls potentially. I'm down a slot in Wisconsin tonight and Tom yet trump campaign tonight acknowledging they could have prepared more for that first debate the next one we know. A little more than a week away now what have you learned any changes in front. David trump had a packed schedule going to that debate eighth wonder if it was too packed but the next two weeks of the same thing. Deal with what raisers and events it's unclear prompt will take time to prepare more. This is the part of the process he likes most David speaking to these large crowds David Tommy Imus on the trump campaign force.

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

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