Urban progressivism is on the ballot in Pennsylvania’s biggest cities, where the May 18 primary will measure Democratic voters’ satisfaction with ideological governance. Seeking a third term as mayor, Pittsburgh’s Bill Peduto could lose reelection for not going far enough as a self-described progressive – particularly on public-safety issues. In Philadelphia, District Attorney Larry Krasner may lose a second term for going too far as a progressive prosecutor amid surging violent crime. The primary, which essentially determines November’s victors in both one-party cities, is “really a test of where Democratic voters are right now,” said Christopher Borick, director of Muhlenberg College’s Institute of Public Opinion.