U.S. Attorney General Jeff Sessions has carried through on his threat to deny federal funding to areas that refuse to cooperate with immigration enforcement -- at least, to the extent he can. He announced recently that he will deny sanctuary cities some $385 million in grants that are contingent upon cooperation with the U.S. Immigration and Customs Enforcement. To keep the money, the cities would have to agree hold immigrants in jail longer than strictly necessary in order to allow ICE to consider them for deportation.