Yes, he is partisan. Hiring a company to do a job, and said company "cheating", and Republicans firing said company doesn't measure up to Democratic fraud occurrences.
Which brings up a bigger question. Project Veritas has proof of Democratic fraud taking place in Florida. Yet, Florida Division of Elections has no investigations into those complaints.
Also, this is a pattern that goes back to the last election, ACORN, etc., that continues to occur with the Democratic Party.