But what Trump is describing above isn't a perjury trap at all. Let's define the term first: A perjury trap is when a prosecutor asks questions of a witness knowing that witness will lie. And in fact, the scenario Trump lays out isn't even close to a perjury trap. The problem here is that Giuliani (and Trump), whether intentionally or unintentionally, are conflating a "he said, she said" debate with a perjury trap. All of this is to say: None of what Trump (or Giuliani) is alleging is a perjury trap.

Source: CNN August 21, 2018 19:18 UTC