The suit, brought by the state attorney general, suggests that employees helped ICE agents beyond Arizona, where the practice was revealed last year.
Andrew D. Leonie, an associate deputy attorney general, had complained on Facebook early Wednesday about “all the pathetic ‘me too’ victim claims.”
President Trump, showcasing his accomplishments near the end of his first year, said that for every new regulation, his administration has killed 22.
Attorney General Jeff Sessions is testifying before the House Judiciary Committee. He is likely to face questions about his contacts with Russians during the 2016 election.
Few Democratic state officeholders are women, a shortfall the party is seeking to fix.
A group of 16 Democratic attorneys general have filed suit in New York, claiming that Mr. Trump had improperly upended the policy known as Deferred Action for Childhood Arrivals.