On October 18, Massachusetts is holding a special election to fill the vacant State House seat in the Berkshire County 3rd district, around Pittsfield. The race will be between Green Party nominee Mark C. Miller, and a Democrat who will be chosen in a special primary on September 20. On August 24, the Miller campaign announced that the Massachusetts United Auto Workers has already endorsed Miller, even though no one yet knows which of three Democrats will be the Democratic nominee. See this story. Thanks to Green Party Watch for this news.

Mark Miller ran for this same seat in November 2010, and in a two-person race against a Democrat, polled 45.02%.