At the start of this week’s Republican National Convention, Republicans adopted a new platform that promises to preserve Social Security and Medicare with no cuts, while also pledging to cut taxes for working Americans. Can those two objectives be squared? We’ll also hear more about the economics of J.D. Vance and learn how Gaza’s farmers are faring amid war. Plus, from today’s “Marketplace Tech,” how can we limit the fallout from misinformation after political violence?