Jennifer Lawrence, Bradley Cooper and Robert De Niro star in Joy. Watch the trailer now! | Joy

Famed actor Wendell Pierce spoke to Joy Reid on the floor of the Democratic National Convention about the historic nature of Vice President Kamala Harris' nomination--plus he has a special message for Black men. "There's blood on that ballot box. For them. Do them the honor and vote," he says. Watch now: | The ReidOut with Joy Reid