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 congressional committee has 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 immigration enforcement.

The House Committee on Oversight and Government Reform investigating so-called "sanctuary" jurisdictions across the nation has called for Denver Mayor Mike Johnston to testify in Washington, D.C.