ABC News’ Martha Raddatz interviews Sen. Chris Van Hollen on “This Week" over President Trump deploying the National Guard to Washington, D.C.

Fear in the streets. Buildings burning. Law enforcement struggling to tamp down violence and bring chaos under control.

President Donald Trump deployed 800 National Guard troops to the nation's capital as part of a crime crackdown in the city.

National Guard troops have begun 24-hour operations around Washington, D.C., as of Thursday morning, according to a Department of Defense official. It's part of President Donald Trump's plan to address crime in Washington by taking over the city's police department and deploying the National Guard troops.

West Virginia, South Carolina and Ohio are sending several hundred National Guard troops to Washington to bolster the federal deployment that President Donald Trump has ordered in his effort to reduce crime in the nation’s capital.

Trump fulfills campaign promise by federalizing D.C. with 30-day emergency control, cracking down on crime in the nation's capital.

Around two dozen soldiers stood guard outside Washington, Union Station in Washington, D.C., on Aug. 14. They had little to do.

The U.S. capital Washington sued Donald Trump on Friday over his attempted takeover of the city's police force, escalating a power struggle between the U.S. president and the city's leadership.