House Oversight Committee Chairman James Comer (R-KY) sent letters Johnson and the mayors for three other major cities – Boston, Denver, and New York – last week, asking them to testify before the committee and hand over all documents and communications related to their city's sanctuary policies.

Chicago Mayor Brandon Johnson, who did not immediately respond to request for comment, has defended the city's sanctuary laws. He and other mayors plan to testify next month at a

The federal lawsuit is the first by Trump's Justice Department against states or municipalities that have sanctuary city policies.