Black voters were critical to the Democrats' 2018 blue wave. In fact, 90 percent of Black voters supported Democratic House candidates, compared to just 53 percent of all voters. Despite media narratives, this was not a fluke. Throughout U.S. history, Black people have played a crucial role in the shaping of the American experiment. Yet still, this powerful voting bloc is often dismissed as some "amorphous" deviation, argues Tiffany Cross. Say It...