The hearing begins Wednesday at 9 a.m. Chicago time. Here's how to watch and what to know about the mayor's testimony.

The scale of the challenges that confronted Mayor Brandon Johnson during his first 20 months in office is likely to be eclipsed Wednesday, when he is scheduled to testify in front of the U.S. House Oversight Committee about the city’s self-proclaimed status as a sanctuary city.

Mayor Johnson's Chief Of Staff Cristina Pacione-Zayas joined the WGN Evening News to talk about the hearing and more.

Former Mayor Richard M. Daley traveled to the nation’s capital twice as mayor. His successors, Mayors Rahm Emanuel and Lori Lightfoot, never made the trip in their official roles.

Old foes appear to put aside Chicago Democratic politics to help Johnson prepare for a Republican-led hearing in Congress.

The City Council narrowly approved Mayor Brandon Johnson's controversial $830 million bond deal to finance neighborhood infrastructure improvements, despite complaints that a back-loaded repayment schedule would inflate the total cost to $2 billion by the time all of the debt is paid off.

Mayor Brandon Johnson arrived in Washington, D.C. on Sunday ahead of a Congressional hearing Democrats expect will be light on policy and heavy on political theater. Johnson, who will testify about the city’s sanctuary city status before a Republican-led House committee,

Mayor Brandon Johnson has arrived in Washington D.C. for his expected testimony before the House Oversight Committee Wednesday, and the committee is hyping the expected confrontation in an online video.