politics reporter and judd sugarman. betsy, this precise connection isn't something we've seen from the special prosecutor. >> that's right. and what else is fascinating is it's mueller saying what he and his team thinks is important. part of the filing is it has to do with the sentencing of alex van der zwaan, the attorney that viewers saw on screen a few minutes ago. they're arguing a case why the judge should take he guilty plea so important. it's because he lied about person a. and mueller says that person a is an important person. the fact that he talked to a senior trump campaign official, rick gates, the month before the election is material.