Chicago Mayor Lori Lightfoot has accepted President Donald Trump’s offer of federal law enforcement officials to help fight crime in Chicago — but says they must not patrol protests, as federal officials are doing in Portland, Oregon. President Trump and Mayor Lightfoot spoke Wednesday evening, after the administration announced that it would surge federal law enforcement agents to Chicago and other cities suffering from a wave of violent crime in the wake of Black Lives Matter protests. The protests have prompted police to scale back patrols — in some cases at the behest of politicians. Lightfoot claimed that Trump “realized...