Massachusetts voters will decide Question 3 on November 3, 2026, which would replace separate party primaries with a single all-party primary advancing the top two finishers regardless of affiliation. The measure cleared its final legal hurdle when the Supreme Judicial Court rejected challenges in June 2026, allowing it to reach the ballot after signature certification. Trader sentiment remains nearly even because organized opposition from both state party committees and a coalition of 27 lawmakers emphasizes risks to party nomination processes and grassroots efforts, while backers including moderates such as Representatives Moulton and Auchincloss argue the change would broaden candidate appeal and increase primary participation. Recent developments include substantial Yes campaign fundraising and formal No endorsements from Democratic and Republican leadership, leaving the outcome sensitive to final voter mobilization and any shifts in polling on primary reform.