HARLOW: New details from the federal court in Virginia where right now the prosecution's star witness, Rick Gates, is back on the stand testifying against his former boss and former Trump campaign chairman, Paul Manafort. Let's go to our crime and justice correspondent Shimon Prokupecz. This is a big day for Gates. I mean, they're going to wrap up the direct. The cross-examination will begin. What has happened so far this morning?</s>SHIMON PROKUPECZ, CNN CRIME AND JUSTICE CORRESPONDENT: Yes, we're about an hour or so into his testimony. And really, Rick Gates just going through some of the details, spelling out just how Manafort made money, how the scheme worked -- kind of the nitty gritty details here of how the Ukrainians would put money into these accounts of Manafort's accounts. That they used various accounts of their own that they created, the Ukrainians have put some of the money into Manafort's accounts. So, it's really the important part of the prosecution's case, some of the more detailed information, perhaps a little mundane for some of us. But these are the important facts, sort of how the prosecution say the scheme worked. How Manafort made money. How he avoided paying some of the taxes, and how he hid some of this money. At one point, Rick Gates saying that Manafort made about five million Euros from some of these transactions. And then he described how the campaign worked. How the Ukrainians have structured the deals, the contracts, and how much they would pay Manafort in terms of helping him with some of the political campaigns that he was working on.</s>HARLOW: OK. Shimon, thank you for watching all of this for us, a few more hours of this testimony ahead, and then the defense gets to cross examine him. Thanks. Still ahead, a message, a thank you to Serena Williams this morning from me, and I would bet just about every mom out there, next.
Gates Returns to Stand to Testify against Ex-Boss Manafort