It was a chaotic week for Chicago Public Schools, marked by turmoil at Lincoln Park High School over the ouster of multiple administrators and coaches. Meanwhile, CPS watchdog Nicholas Schuler announces his resignation amid allegations of a toxic work environment.

Former state Rep. Luis Arroyo pleads not guilty to bribery. And the judge presiding over Ald. Ed Burke’s case blocks off months for his upcoming trial, set for 2021.

Mayor Lori Lightfoot attends President Donald Trump’s State of the Union address. A day later, the Senate votes to acquit the president of impeachment charges.

After Iowa flubs the first presidential primary, Gov. J.B. Pritzker says Illinois should go first. Meanwhile, Joe Walsh drops his quixotic primary bid to unseat Trump as the GOP nominee.

Pot sales reach nearly $40 million in the first month of legalization.

With Mike Flannery, Kimberley Egonmwan, Sarah Schulte and Steve Daniels.

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