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

South Carolina and Ohio say they will send a combined 350 National Guard troops to Washington, D.C., supplementing a surge of troops from Republican-led states.

The Republican governors of West Virginia, South Carolina and Ohio announced Saturday they will send National Guard troops to Washington, DC, in an escalation of President Donald Trump’s efforts to federally take over law enforcement in the city.

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.

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

In New Mexico’s most populous city, National Guard troops are listening to the police dispatch calls, monitoring traffic cameras and helping to secure crime scene perimeters, tasks not usually part of the job.

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.