Mfume Leads Cardin In Sharply Divided Primary, Poll Shows Former NAACP president Kweisi Mfume leads U.S. Rep. Benjamin L. Cardin in what is shaping up to be a racially polarized Democratic Senate primary in Maryland, even as roughly a third of the electorate has not settled on a candidate, according to a new Washington Post poll. For the first time in Maryland history, both major parties have the potential to nominate an African American, and the poll suggests that the hopes of all of the major candidates will depend on their ability to cross racial boundaries for support. As they...