Trump didn’t say that, of course.
If I were Trump, I’m not even sure I would agree to debate Hillary Clinton. She has been practicing for decades now, and the debate would be full of things like that; blindsiding with falsehoods. Would Trump pay a price for not doing it? Maybe, because people expect it now. But maybe people have had it with the round-the-clock political coverage and might not even miss it.
He might pull it off, saying he wants to talk directly to real people, not to “crooked Hillary” with biased moderators helping her tell lies like they did with Obama.
One needs to remember that Truman defeated the much-favored Dewey not in debates, but by going around the country to every whistle stop and talking directly to the people.
Trump seems most effective when he’s doing essentially the same thing.