The bipartisan U.S. House Committee on Oversight and Government Reform sent a letter to Denver Mayor Mike Johnston asking him to testify. Johnston didn't say if he would but criticized Republicans in Congress on immigration.

A spokesperson for the mayor's office could not confirm if he plans to testify before Congress on Denver's "sanctuary city" status, and said the mayor is still reviewing the letter from Congress. Denver7's Kristian Lopez reports.

A congressional committee on Monday asked Denver Mayor Mike Johnston to testify in Washington, D.C., next month to defend the city’s policies limiting local police cooperation with federal