1/2 J.B. Pritzker, part of the family that sponsors architecture’s most prestigious prize, is on the wrong side of history when he says the Thompson Center is expendable because it isn’t Helmut Jahn’s best work. The same argument was made to back the destruction of Louis...

2/2 Sullivan and Dankmar Adler’s Chicago Stock Exchange Building, a huge mistake. While the Thompson Center has undeniable faults, it has ever greater virtues—chief among them the great civic space of its atrium and its stature as a major work of postmodernism. Back off, J.B.

It’s time for Mayor Lori Lightfoot, Planning Commissioner Maurice Cox and Chicago’s Landmarks Commission to step up and do the right thing: Bestow city landmark status on the Thompson Center. That way, even if the building is sold, it will be protected from demolition.