The National Guard has been deployed many times historically. Experts say the president's decision to deploy the Guard as a blanket response to crime in D.C. is a departure from its intended mission.
The National Guard has been deployed to enforce the law before. What's different now?
toggle caption Saul Loeb/AFP via Getty Images
President Trump's decision to assert federal control over Washington, D.C.'s police force and deploy National Guard tr... [7151 chars]

