This week, Emily Bazelon, John Dickerson, and David Plotz discuss a new oral history of President Trump’s Department of Justice, the complex transactional nationalism of this week’s visit from Saudi Crown Prince Mohammed bin Salman with guest Jake Sullivan, former National Security Advisor and co-host of the new podcast The Long Game, and what is likely to happen now that Trump has signed the bill to release the Justice Department’s Epstein files. For this week’s Slate Plus bonus episode, Emily, John, and David discuss the sordid scandal around the tangled relationships of political reporter Olivia Nuzzi and the complex questions it raises about relationships between journalists and their sources.   In the latest Gabfest Reads, John talks with journalist and author Andrew Ross Sorkin about his new book, 1929: Inside the Greatest Crash in Wall Street History and How It Shattered a Nation — the story of speculation, debt, and the human drives that fueled the Wall Street crash that changed everything.   Email your chatters, questions, and comments to gabfest@slate.com. (Messages may be referenced by name unless the writer stipulates otherwise.)   Podcast production by Nina Porzucki   Research by Emily Ditto You can find the full Political Gabfest show pages here.   Want more Political Gabfest? Join Slate Plus to unlock weekly bonus episodes. Plus, you’ll access ad-free listening across all your favorite Slate podcasts. You can subscribe directly from the Political Gabfest show page on Apple Podcasts and Spotify. Or visit slate.com/gabfestplus to get access wherever you listen. Learn more about your ad choices. Visit megaphone.fm/adchoices