Trump's plan to address crime in D.C. calls for deploying National Guard troops along the National Mall overnight Wednesday into Thursday morning, according to a source.

National Guard troops scaled up their presence in D.C. Thursday, with several stationed around the National Mall, at Union Station, on the subway, and other places.

The D.C. National Guard has commenced its deployment into the nation's capital this week. What are the chances we might see President Trump expanding this military presence to other cities across the country?