Denver Mayor Mike Johnston testified on Capitol Hill about the so-called "sanctuary city" policies on Wednesday morning.

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.

Denver Mayor Mike Johnston is already in Washington, D.C., preparing to testify before the U.S. House Oversight and Government Reform Committee that is investigating “sanctuary" jurisdictions.