Boston Mayor Michelle Wu testified before a House committee on so-called "sanctuary cities" in Washington Wednesday.

She stood up for the city and refused to cower in the face of threats and smears,” one of more than 1,700 respondents said. The post Mayor Michelle Wu represented Boston well at the ‘sanctuary cities’ congressional hearing,

Wu was one of four Democratic mayors called before the committee. The three others — Eric Adams of New York City, Brandon Johnson of Chicago, and Mike Johnston of Denver — chose not to give the yes or no answer requested by Representative Nancy Mace of South Carolina when she asked, “Is breaking into our country against the law?”

Boston Mayor Michelle Wu responded to criticism she received after giving her condolences to the family of a person police say was wielding a knife when he was shot and killed by an off-duty officer.

Mayor Michelle Wu, days after answering questions in front of a congressional committee, was endorsed by five workers’ unions consisting of 135,000 people statewide.The 32 BJ Service Employees International Union emphatically welcomed Wu in their downtown Boston headquarters Saturday afternoon.