chicago/new york chicago sue trump administration monday threats withhold public safety grant money so-called sanctuary cities escalate pushback federal immigration crackdown mayor rahm emanuel announce sunday federal lawsuit come less two weeks attorney general jeff sessions announce u.s. justice department would bar cities certain grant program unless allow immigration authorities unlimited access local jail provide 48 hours notice release anyone want immigration violations chicago let police officer become political pawn debate emanuel democrat say news conference chicago let residents fundamental right isolate violate chicago never relinquish status welcome city edward byrne memorial justice assistance grant provide money hundreds cities trump administration request 380 million fund next year chicago regular target republican president donald trump murder rate expect receive 3.2 million year purchase equipment emanuel say lawsuit would prevent trump administration set precedent could use target fund trump sessions federal government seek crack sanctuary cities generally offer illegal immigrants safe harbor decline use municipal resources enforce federal immigration laws dozens local governments cities include new york los angeles chicago join grow sanctuary movement justice department say chicagoans murder last year residents los angeles new york combine cite comment sessions last week say sanctuary cities make us less safe justice department spokeswoman sarah isgur flores say sunday statement especially tragic mayor less concern stagger figure spend time taxpayer money protect criminal alien put chicago law enforcement great risk police city officials sanctuary cities say deport illegal immigrants accuse serious crimes harm public safety discourage immigrants come forward report crimes chicago lawsuit first challenge department byrne program though city officials say contact cities california attorney general xavier becerra also consider similar lawsuit sacramento bee report trump administration already face legal battle sanctuary city policies last month u.s. judge refuse revisit court order block trump january executive order deny broad federal fund jurisdictions case file san francisco california county santa clara chicago sue trump administration sanctuary city fund threat