The Trump administration sued the city of Boston and its leaders Thursday in its latest attempt to invalidate policies seen as interfering with immigration enforcement.

The suit alleges that Boston’s sanctuary city policies are illegal under federal law and the city’s refusal to cooperate with immigration authorities has resulted in the release of dangerous criminals who should be deported.

“The City of Boston and its Mayor have been among the worst sanctuary offenders in America — they explicitly enforce policies designed to undermine law enforcement and protect illegal aliens from justice,” Attorney General Pamela Bondi said in a statement. “If Boston won’t protect its citizens from illegal alien crime, this Department of Justice will.”

The administration has filed a series of similar

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