A Philadelphia man canvassing for a progressive organization was fatally shot by a fellow campaign staffer Monday while the two were handing out flyers ahead of the city’s mayoral primary election. Eddie Brokenbough, 46, was struck once in his left armpit by an unidentified 22-year-old staffer around 4 p.m. in the East Germantown neighborhood, police said. Brokenbough was rushed to a nearby hospital but died 15 minutes after he was shot. It is unclear what kicked off the deadly fight, but police believe it stemmed from a prior dispute between the pair, who were both campaigning on behalf of the...