The defense in the ongoing trial of former Trump campaign chairman Paul Manafort is expected to try to discredit star witness Rick Gates during Tuesday’s cross-examinations. Gates testified Monday that he and Manafort committed extensive tax and bank fraud. NPR justice department correspondent Ryan Lucas has the latest. Also, Georges Collinet, DJ and host of the syndicated radio series Afropop Worldwide, joins Here & Now’s Jeremy Hobson for this week’s DJ Session, covering diverse rhythms and tribal beats across Africa. And Jonathan Linkov, deputy auto editor for Consumer Reports, talks about what consumers should know before buying a used car. That and more, in hour two of Here & Now’s Aug. 7, 2018 full broadcast.