Representative James Comer has asked the mayors of Boston, Chicago, Denver and New York City for documents and information on their sanctuary policies.

U.S. James Comer is asking sanctuary mayors to testify before the House Committee on Oversight and Reform on their sanctuary city policies.

Boston Mayor Michelle Wu has been called upon to testify at an upcoming hearing on so-called "sanctuary cities."

The city has been singled out as one of the nation’s four most problematic sanctuary cities and Mayor Michelle Wu has been asked to testify about its “sanctuary policies” at a public hearing next month,

Boston Mayor Michelle Wu has been asked to testify at a Congressional hearing as part of a federal investigation into sanctuary cities.

Mayor Michelle Wu, facing the possibility of Boston losing millions in federal dollars, on Tuesday spoke after being asked to testify at a sanctuary cities hearing on Capitol Hill.

Boston Mayor Michelle Wu, along with mayors from Denver, New York and Chicago, was called to testify before the U.S. House Oversight and Government Reform Committee regarding sanctuary city

U.S. Rep. James Comer has asked four Democratic mayors to testify before the House Oversight and Government Reform Committee.

Show the courage of your convictions, mayor, and defend your position. Make your case for sanctuary cities. Don’t just take pot shots at Republicans and Fox News from the safe spaces of maternity

House Republicans called for Wu and three other mayors to appear before Congress next month to testify about their "sanctuary jurisdictions."

In a statement, a city spokesperson said, “We are proud that Boston is the safest major city in the United States. We have received the letter and are reviewing it.”