Ald. Matt O’Shea (19th), whose endorsement of Lori Lightfoot in the 2019 runoff election was pivotal to her landslide victory, said Thursday he will make no mayoral endorsement this time because he’d “have a civil war on my hands” if he backed Lightfoot again.

“The senseless violence is so pervasive across the city. And for people to say things like, ‘Murders are down’ [is insulting]. We’re a world-class city. I don’t know if we are anymore based on where we’re headed,” O’Shea said.