The Congressional hearing was part of a federal investigation into so-called "sanctuary cities."Committee Chairman James Comer, a Republican from Kentucky, launched the probe back in January to look into what he described as "the policies of sanctuary jurisdictions and their impact on public safety and federal immigration enforcement.

Below are live updates from MassLive over the course of the Wednesday, March 5 congressional hearing on sanctuary cities and immigration policies, featuring Boston Mayor Michelle Wu and three other Democratic mayors from New York,

Boston Mayor Michelle Wu may be facing criminal prosecution for the city’s sanctuary policies after the prospect of federal charges was raised by numerous Republican lawmakers who grilled her at a