Wsj Opinion: Potomac Watch

Donald Trump considers sending federal forces, including National Guard troops, to clean up Chicago's streets, but Illinois Gov. JB Pritzker says he doesn't want the help. Could Trump do it over the objections of state and local leaders? And is this a winning political issue for the GOP, as Mayor Muriel Bowser announces that carjackings in Washington, D.C., have dropped 87%? Learn more about your ad choices. Visit megaphone.fm/adchoices