Mayor Brandon Johnson will testify before Congress next month as part of a Republican-led House probe into sanctuary cities, his office announced Wednesday.

Mayor Brandon Johnson will travel to Washington, D.C., next month to testify at a congressional hearing on Chicago's status as a sanctuary city for undocumented immigrants. House Oversight Committee Chairman James Comer (R-KY) sent letters Johnson and the mayors for three other major cities – Boston,

The U.S. Department of Justice is suing the State of Illinois and the City of Chicago, alleging that sanctuary status is obstructing federal immigration enforcement. Charlie De Mar reports.