The guy who played the role of Trump in Hillary Clinton's practice debates explains how to beat him

Trump is a "malevolent George Costanza," a person who's gotten every job "simply by being [his] obnoxious self, with no filter." That's Philippe Reines' assessment. He should know. As Hillary Clinton's debate sparring partner, he watched every one of the 15 Republican primary debates and forums Trump was in, three times. As a result, he says, "I might know his debating styleif you want to call it thatbetter than anyone on the planet (aside from Hillary Clinton, of course)."

In this Politico article, he presents the qualities that make Trump "such a tough opponent in a debate, despite the fact that he is possibly the worst debater in presidential history," and some suggestions about how the Democratic nominee could deal with Trump's non-stop torrent of lies during a debate:

[O]ur nominee should know that Trump will lie throughout their debate, but cant count on the moderator to call them all out and cant expect the audience to know on their own. So our nominee needs to be able to say, Youre lying. Easier said than done. Especially if Trump lies every time he opens his mouth.

One possible tactic is to simply, and calmly, count out loud. First time he lies, the nominee should say, That was the first of many lies to come because thats what he does best. After that, when Trump lies again, the nominee should interject with a simple Lie number two, or, That was a few, so were up to six. The moderator might scold the candidate for interrupting, but he or she should respond, If you were calling out his lies, I wouldnt have to.