This past year Progressive usurped State Farm as the nation’s biggest personal auto insurer, losing a throne State Farm had held since World War II. The shift sparked a dramatic overhaul at the company, including new agent contracts, sweeping benefit cuts and a big push into AI. WSJ's Jean Eaglesham reports on the fallout. Jessica Mendoza hosts.Further Listening: - Insuring a Home in California Is Getting Harder- Is Florida Just for Rich People Now?Sign up for WSJ’s free What’s News newsletter.Learn more about your ad choices. Visit megaphone.fm/adchoices