The four mayors are appearing before a largely hostile House committee that has labeled their cities’ protection of migrants “misguided and obstructionist.”

The Congressional hearing was part of a federal investigation into so-called "sanctuary cities."Committee Chairman James Comer, a Republican from Kentucky, launched the probe back in January to look into what he described as "the policies of sanctuary jurisdictions and their impact on public safety and federal immigration enforcement.

This rejection was said at a hearing in Washington, D.C. The mayors from Boston, Chicago, New York, and Denver were summoned to testify in Congress. Answering questions about their so-called "Sanctuary cities" for undocumented immigrants.