( August 27, 2026, 9:36 AM EDT) -- CHICAGO — The Seventh Circuit U.S. Court of Appeals affirmed certification of a mandatory class in an Employee Retirement Income Security Act suit over retiree healthcare benefits but reversed a ruling in which it concluded that the lower court had wrongly “judicially estopped” the defendants “from disavowing any obligation to provide lifetime healthcare benefits to pre-1993 retirees based on statements” made in a separate case....