Two Western New York political operatives charged with felony election law violations, including former Erie County Democratic Chairman Steven Pigeon, pleaded not guilty Thursday afternoon in state Supreme Court. A third person will be arraigned at a later date.

Pigeon, David Pfaff and Kristy Mazurek all face two felony counts for allegedly coordinating with Erie County Legislature candidates in 2013 to circumvent campaign finance rules. At the time, they were members of an independent expenditure committee called the WNY Progressive Caucus.

All three pleaded Not Guilty to a felony complaint in April but in order to move to trial the state Attorney General’s Office sought and received a Grand Jury indictment this month. Thursday, Pigeon and Pfaff pleaded not guilty once again.  Mazurek’s arraignment is being rescheduled due to a medical issue.

The defendants were supposed to be processed after court at the state police barracks in Boston but all parties agreed to postpone because of the weather. Attorneys have 45 days to file motions then there will be a window for responses and replies. The next scheduled hearing is March 12 at 2 pm.

Prosecutors said they have witnesses and are ready to go to trial, which could be either a jury or non-jury. The Attorney General’s Office also moved to waive the felony complaint in light of the indictment.

Pigeon is also facing separate charges in two other cases, one in state Supreme Court and another in Federal Court, but both cases stem back to when investigators executed a search warrant at his Buffalo condo in May 2015.