McClure v. Galvin (Richard G. Stearns, D. Mass. 1:04-cv-10826)
An attorney and would-be candidate for state senate filed a pro se federal complaint alleging that he was improperly denied a place on the ballot as an independent candidate because he had voted in a primary election. Three weeks later, the court denied the plaintiff injunctive relief because of a Supreme Court precedent upholding a party disaffiliation requirement.
Subject: Getting on the ballot. Topics: Getting on the ballot; pro se party; primary election.

One of many Case Studies in Emergency Election Litigation.