Posters are seen during protests against racial injustice to mark Juneteenth, commemorating the end of slavery in the United States, near the White House in Washington, D.C., the United States, June 19, 2020. This year's Juneteenth comes amid nationwide demonstrations against police brutality and racism triggered by the death of George Floyd in police custody. More than 20 rallies, marches and events were scheduled for Friday in Washington, D.C., with hundreds more in over 40 states, according to the Movement for Black Lives, a coalition of U.S. groups representing the interests of black communities.Photo:Xinhua

A sign is seen during protests against racial injustice to mark Juneteenth, commemorating the end of slavery in the United States, near the White House in Washington, D.C., the United States, June 19, 2020. This year's Juneteenth comes amid nationwide demonstrations against police brutality and racism triggered by the death of George Floyd in police custody. More than 20 rallies, marches and events were scheduled for Friday in Washington, D.C., with hundreds more in over 40 states, according to the Movement for Black Lives, a coalition of U.S. groups representing the interests of black communities.Photo:Xinhua

Demonstrators protest against racial injustice to mark Juneteenth, commemorating the end of slavery in the United States, near the White House in Washington, D.C., the United States, June 19, 2020. This year's Juneteenth comes amid nationwide demonstrations against police brutality and racism triggered by the death of George Floyd in police custody. More than 20 rallies, marches and events were scheduled for Friday in Washington, D.C., with hundreds more in over 40 states, according to the Movement for Black Lives, a coalition of U.S. groups representing the interests of black communities.Photo:Xinhua

Demonstrators protest against racial injustice to mark Juneteenth, commemorating the end of slavery in the United States, near the White House in Washington, D.C., the United States, June 19, 2020. This year's Juneteenth comes amid nationwide demonstrations against police brutality and racism triggered by the death of George Floyd in police custody. More than 20 rallies, marches and events were scheduled for Friday in Washington, D.C., with hundreds more in over 40 states, according to the Movement for Black Lives, a coalition of U.S. groups representing the interests of black communities.Photo:Xinhua

Demonstrators protest against racial injustice to mark Juneteenth, commemorating the end of slavery in the United States, near the White House in Washington, D.C., the United States, June 19, 2020. This year's Juneteenth comes amid nationwide demonstrations against police brutality and racism triggered by the death of George Floyd in police custody. More than 20 rallies, marches and events were scheduled for Friday in Washington, D.C., with hundreds more in over 40 states, according to the Movement for Black Lives, a coalition of U.S. groups representing the interests of black communities.Photo:Xinhua