In the spring of 1991, Barack Obama, then the president of the Harvard Law Review, spoke at a rally in favor of Professor Derrick Bell and his push for greater diversity on the law school faculty, video footage that has been licensed by the website BuzzFeed from Boston television station WGBH: The context of the video: Bell was the first black professor to sit on the law school faculty. As David Remnick wrote in his Obama biography “The Bridge,” “Derrick Bell was, in Barack Obama’s time, the most vivid symbol of racial politics at Harvard Law School…In 1962, Bell helped...