United Airlines is stoking fresh fears about its future in Chicago. Crain’s airlines reporter John Pletz talks with host Amy Guth about its plans for Denver growth, FAA inspections of some Boeing Max jets and other aviation news.Plus: BOMA, biz groups ask judge to block real estate transfer tax referendum; citing need to cut costs, Stellantis sits out the Super Bowl; Maryland firm pays $19 million for Elgin shopping center; and CVS invests in Chicago senior care company.Crain's Daily Gist listeners can get 20% off a one-year Crain’s Chicago Business digital subscription by visiting chicagobusiness.com/gist and using code “GIST” at checkout.