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People visit the Martin Luther King Jr. Memorial in Washington, DC on Martin Luther King Day on January 21, 2019. (Photo by Andrew CABALLERO-REYNOLDS / AFP) (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)

People visit the Martin Luther King Jr. Memorial in Washington, DC on Martin Luther King Day on January 21, 2019. (Photo by Andrew CABALLERO-REYNOLDS / AFP)        (Photo credit should read ANDREW CABALLERO-REYNOLDS/AFP/Getty Images)