Americans celebrate Juneteenth amid push for social justice

Monday marked just the second time in U.S. history that the federal government has recognized Juneteenth. The holiday celebrates June 19, 1865, when Union soldiers brought word of slavery’s end to Galveston, Texas, freeing the last enslaved people after the Emancipation Proclamation was signed. Peniel Joseph, founder of The Center for the Study of Race and Democracy, joins Amna Nawaz to discuss.