Denver Mayor Mike Johnston on Wednesday agreed to testify before Congress over Denver's status as a sanctuary city. Why it matters: Johnson will be pressed to defend Denver's policies protecting migrants from deportation at a time when the U.

Denver Mayor Mike Johnston has decided to testify before a congressional committee next month after being asked to explain the city’s policies limiting cooperation with federal immigration

Denver Mayor Mike Johnston has agreed to testify before Congress over the city’s immigration policies, his office said Wednesday. The Republican-led House Oversight Committee last month sent a letter to Democratic mayors of so-called sanctuary cities,