Military vehicles carrying National Guard personnel drive along West Executive Drive, following national protests against the death of George Floyd in Minneapolis police custody, at the White House in Washington, U.S., June 1, 2020. Tensions rose between protesters and military police near White House grounds after U.S. President Donald Trump urged state governors to crack down on protests over racial inequality that have engulfed the nation's major cities, as officials extended curfews in hopes of preventing a seventh night of looting and vandalism. REUTERS/Tom Brenner

Military vehicles carrying National Guard personnel drive along West Executive Drive, following national protests against the death of George Floyd in Minneapolis police custody, at the White House in Washington, U.S., June 1, 2020. The death of the unarmed black man in Minneapolis police custody prompted tens of thousands of people to take to the streets of major cities from Seattle to New York. REUTERS/Tom Brenner

A Washington D.C. National Guard member looks out of a military vehicle while riding along West Executive Drive following national protests against the death of George Floyd in Minneapolis police custody, at the White House in Washington, U.S., June 1, 2020. Floyd, 46, died after officer Derek Chauvin knelt on his neck for nearly nine minutes. His last words were "I can't breathe," which became the slogan of the nationwide protests. REUTERS/Tom Brenner

Military vehicles carrying Washington D.C. National Guard members drive along West Executive Drive following national protests against the death of George Floyd in Minneapolis police custody, at the White House in Washington, U.S., June 1, 2020. Tensions rose between protesters and military police near White House grounds after U.S. President Donald Trump urged state governors to crack down on protests over racial inequality that have engulfed the nation's major cities, as officials extended curfews in hopes of preventing a seventh night of looting and vandalism. REUTERS/Tom Brenner

DC National Guard Military Police officers and law enforcement officers stand guard during a protests against the death in Minneapolis custody of George Floyd, near the White House in Washington, D.C., U.S., June 1, 2020. The death of the unarmed black man in Minneapolis police custody prompted tens of thousands of people to take to the streets of major cities from Seattle to New York. REUTERS/Jonathan Ernst

Law enforcement officers stand guard as demonstrators take part in a rally near the White House against the death in Minneapolis police custody of George Floyd, in Washington, D.C., U.S., June 1, 2020. Floyd, 46, died after officer Derek Chauvin knelt on his neck for nearly nine minutes. His last words were "I can't breathe," which became the slogan of the nationwide protests. REUTERS/Jonathan Ernst