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

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.

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

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 Trump administration on Friday reversed course and agreed to leave the Washington, D.C., police chief in control of the department, while Attorney General Pam Bondi, in a new memo, directed the District’s police to cooperate with federal immigration enforcement regardless of any city law.