CHICAGO—As former President Donald Trump prepares to take the stage at the Fairmont Chicago hotel, members and guests of the Economic Club of Chicago are accustomed to hearing big-name speakers—some drawing twice as many attendees. Bono, the lead singer of the rock band U2, spoke to the nonprofit group for business and civic leaders in 2018, which one Economic Club of Chicago member, Rhonda, attended with her husband. Another former president, George W. Bush, spoke to the group in 2006, which Irv Kaage attended and saved photos from. Want more breaking political news? Click for the latest head…