PITTSBURGH, Pennsylvania — An organization financed by international left-wing billionaire George Soros is playing a large role in the complicated race for Allegheny County district attorney. Incumbent Steve Zappala is a Democrat now running as a Republican because of his Democratic primary loss to progressive Matt Dugan, the county’s former public defender. Plenty of eyebrows were raised over the weekend when campaign finance reports showed nearly all of the money Dugan received came from the Pennsylvania Justice and Public Safety PAC, which is funded by Soros.