Chicago Mayor Brandon Johnson is one of four mayors who have confirmed they will travel to Washington, D.C. at the beginning of March to testify on sanctuary cities.

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.

Mayor Brandon Johnson’s appearance is likely to represent a flashpoint in the ongoing battle with the GOP-controlled U.S House and the Trump administration, which is attempting to strip self-proclaimed sanctuary cities of all federal funding.

Over the past decade, the job description for the mayor of Chicago has included a new duty: responding to Donald Trump. The question before Brandon Johnson is, how does the freshman mayor come out on top against a reality TV-bred GOP president made famous for breaking the rules?

Chicago Mayor Brandon Johnson’s approval rating is down to 14%, the lowest in Chicago mayoral history. Nearly 80% of those polled hold an unfavorable view of Johnson.