The cities of Chelsea and Somerville filed suit on Monday, asking a federal judge to block the Trump administration's efforts to withhold funding from so-called "sanctuary jurisdictions."

Chelsea and Somerville are suing the Trump administration over his threats to pull federal funding over their sanctuary city policies. Why it matters: Massachusetts cities are resisting President Trump's second attempt to force compliance with civil immigration enforcement by taking the matter to court,

Somerville and Chelsea are asking a federal judge to block an “illegal campaign of bullying and intimidation” aimed at sanctuary cities.