Let's free D.C. from lawlessness,' Vance said in response as he spoke to troops gathered at Union Station in D.C.

The protesters jeered Vance, Defense Secretary Pete Hegseth and White House deputy chief of staff Stephen Miller as they visited Union Station, blocks from the U.S. Capitol, to thank the troops at a Shake Shack where they bought lunch for the guard members.

The Trump administration has deployed an overwhelming show of force in the nation's capital in response to a supposed “crime emergency.”