President Donald Trump signed an executive order Monday tasking his secretary of defense, Pete Hegseth, with establishing “specialized units” in the National Guard that will be “specifically trained and equipped to deal with public order issues” — the clearest sign yet he intends to expand the US military’s role in domestic law enforcement activities across the country.

Chicago Mayor Brandon Johnson signed an executive order Saturday aimed at banning federal law-enforcement officers from wearing masks or disguises as he tries to head off a threat from President Donald Trump to expand his crime crackdown to the city.