On the morning of June 6, CBOE Global Markets is scheduled to ring the opening bell at its new venue in the same Chicago Board of Trade building at the foot of LaSalle Street where the options market got its start in the 1970s — and where the shouting and arm-waving of open outcry ruled for decades until computers mostly took over.

“Based on my 24 years of experience as a high school teacher, it is my opinion that it is immoral to teach the way LT teachers are being asked to work.”

Vallas has only said he would make an announcement on whether he would run in the upcoming race by Memorial Day. But he has already given interviews about what he would do to fix problems in Chicago.