A powerful coalition of billionaires fighting for prison reform sounds like a group of Democratic politicians, doesn’t it? However, this coalition, called REFORM Alliance, is headed by people like Jay-Z, Meek Mill, Philadelphia 76ers’ owner Michael Rubin, the owner of the New England Patriots Robert Kraft, the New Jersey Nets’ co-owner Clara Wu Tsai, hedge fund manager Daniel Loeb, cryptocurrency giant Michael Novogratz, and Vise Equity Partners’ creator Robert Smith.