Fritz Kaegi, the first to jump in the race to take on County Assessor Joe Berrios, released his first online ad Monday. You can watch it here. The spot, which lasts just over a minute, plays up Kaegi’s progressive Hyde Park upbringing, flashing pictures of Mayor Harold Washington, and Kaegi holding a purple sign that reads “Illinois Needs Strong Unions.” It also shows images of Trump Tower, and Berrios at a press conference held to respond to a Chicago Tribune investigation of the assessment system. “We have a corrupt, pay-to-play system that’s giving massive tax breaks to some of the wealthiest property owners in Cook County,” he says in a voiceover. “I can restore integrity to the assessor’s office--I’ve spent my career as a financial analyst valuing assets and being a responsible steward of working people’s retirement and savings.” Kaegi, a financial analyst and portfolio manager, has already donated $310,000 to his campaign.