Trump Reaches Contentious New Nuclear Deal, and A.I. Models Go Rogue

Plus, what is a Jimothy? Here’s what we’re covering: Saudis Reach Deal With U.S. That Could Let Them Enrich Nuclear Fuel, by David E. Sanger, Edward Wong and William J. Broad Hegseth Estimates Iran War Has Cost $37.5 Billion, by Greg Jaffe Mamdani Calls Netanyahu a ‘War Criminal’ and Calls on U.S. to Arrest Him, by Liam Stack OpenAI Says Its A.I.