6/11/24: Northwestern's problem in D.C. gets more serious

Congress continues to circle around Northwestern, recently threatening the school with a subpoena for impeding its investigation following President Michael Schill’s appearance on the Hill. Crain’s education reporter Brandon Dupré discusses with host Amy Guth. Plus: Biz leaders give Pritzker, legislators solid marks after spring session; Walgreens shelves plans for Boots IPO; United is making a digital-advertising push; and Hancock tower observation deck operator buys Signature Room space.