Philadelphia mayoral candidates vie for nomination in crowded Democratic primary

Philadelphia Democrats go to the polls Tuesday to pick their party's mayoral nominee, who is likely to go on to be the city's 100th mayor — the city is heavily Democratic and has not elected a Republican mayor since the 1950s. 

Recent polls show five Democrats — Cherelle Parker, Helen Gym, Rebecca Rhynhart, Allan Domb and Jeff Brown — have a shot at winning, including the three women who could become the city's first female mayor. In April the nonpartisan nonprofit Committee of Seventy's survey found all five in a statistical tie.