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

Boston Mayor Michelle Wu was one of four mayors called before the House's Committee on Oversight and Government Reform to testify on their status as 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,