President Trump's long-awaited meeting with China's Xi Jinping has resulted in some success or both sides, with agreements on rare earth minerals and tariffs. But while these deals may be a welcome sign of diplomatic engagement, Trump's unexpected order to start nuclear weapons testing again, for the first time in 30 years, grabbed the bigger headlines. Matt Pottinger was Trump's Deputy National Security Adviser during his first term, and he joins the program from Utah. 

Also on today's show: Patrick Gaspard, confidant of NYC mayoral candidate Zohran Mamdani; author Julia Ioffe ("Motherland")