President Trump has ousted his national security advisor Mike Waltz. He had been under pressure since last month, when he inadvertently added a journalist to a Signal group chat where senior Trump officials were discussing military plans to strike Yemen. Caitríona Perry, Sumi Somaskanda, and Bernd Debusmann examine the implications of this decision and what it signals for the Trump administration. Plus, concerns about the US economy. Every weekend, we take a closer look at what’s happening in US politics and what’s going on behind the scenes at the White House and on Capitol Hill. If you'd like to get in touch, email us at [email protected].

Producer: Aisling Taylor.