CNN waited 12 hours to cover Joe Biden’s “you ain’t black” comment — while ABC, CBS, and NBC averaged only one minute of discussion about his shocking remarks. During an appearance on the Breakfast Club radio show on Friday, the presumptive Democrat nominee told the black host, Charlamagne Tha God, that if you choose Trump over him, “you ain’t black.” The comment rapidly went viral and drew condemnation from both sides of the aisle. But mainstream media cover-up and Biden’s racist comments are not new. In 2006 Biden said: “You can’t go to a 7-Eleven or a Dunkin Donuts unless...