san francisco to boston. but the windy city's filing is getting the attorney general's focus tonight. as he references chicago's unprecedented crime surge and murder rate. sessions adds, quote: the city's leaders cannot follow some laws and ignore others and reasonably expect this horrific situation to improve. correspondent islamic has our top story. >> chicago mayor rahm emanuel said it's illegal for the federal government to withhold public safety grants from sanctuary cities like his where local police refuse to cooperate with immigration agents. >> chicago will not let our police officers become political pawns. >> the chicago lawsuit follows similar legal action in massachusetts, washington, oregon, and california where cities say they are being harmed by the threat of losing funds because they can't plan their budget. chicago says it stands to lose $3.2 million by the potential federal action. in san francisco, it's