In a letter responding to Bondi's threats to withhold federal funding from alleged "sanctuary" locations, Wu said Boston law enforcement routinely cooperates with federal authorities on criminal matters.

BOSTON—The mayor of New England’s biggest city on Tuesday delivered a message to the Trump administration: Hands off. Boston has been a focus of the White House’s illegal-immigration crackdown. The Justice Department this month included the blue city on a revised list of so-called sanctuary jurisdictions it says aren’t providing sufficient