President Trump announced a federal takeover of D.C. Metro police and mobilization of the National Guard, saying the moves are necessary to restoring order in the city. (Win McNamee | Getty Images North America)President Trump said Monday he’ll use the National Guard and Metro police to target criminals in Washington D.C., but criminals aren’t his only targets. But some say displacement of vulnerable groups that Trump has lumped in with criminals — homeless people, the mentally ill and people experiencing addiction — isn’t effective. Across Washington, there’s a lot of skepticism that Trump’s approach, using tough police tactics to solve complex social problems, will work. Some in Washington, D.C., including this group of Howard University students, voiced concern that Trump’s tougher policing tactics could harm the city’s most vulnerable people.