Three prominent Western New York political operatives are scheduled to face felony election law charges Wednesday, according to a source familiar with the case. Among them is former Erie County Democratic Committee Chairman Steve Pigeon, who is already in the midst of criminal proceedings for allegedly bribing a state Supreme Court justice.

In June, Attorney General Eric Schneiderman said the investigation that led to the bribery case started because of election complaints that were turned over to his office. Schneiderman insisted the investigation was ongoing.

Meanwhile, the original complainants – Erie County Legislator Betty Jean Grant, former legislator Tim Hogues and attorney Mark Sacha – have been vocal about their displeasure with the unresolved election issues. They believe there was evidence the WNY Progessive Caucus, a political action committee tied to Pigeon, illegally coordinated with candidates to circumvent campaign finance donation limits.

The source said, two other Pigeon associates connected to the PAC, Kristy Mazurek and David Pfaff, are also scheduled to appear in court. Mazurek had a failed run for state Assembly this past fall and has been cooperating with the prosecution for at least a year and a half.

Neither Pigeon’s attorney nor the Attorney General’s office have commented on the charges at this point.