As reported earlier, the Maine Libertarian Party is in court over whether it should be a qualified party. The law requires a group that wants to be a party to have at least 5,000 registered members by December 1 of the year before the election. The party submitted 6,700 voter registration forms showing the applicant had registered “Libertarian” by the deadline, but election officials said only 4,513 are valid. For the lawsuit, the party’s attorney asked the Secretary of State for copies of all voter registration cards that were rejected. On March 4, the attorney for the Secretary of State refused to furnish those copies, and said the party will just need to get them from the various town clerks. The party believes that the Secretary of State is capable of obtaining these copies, and has asked the Secretary of State to reconsider. The judge may need to settle this.
This would seem to be the statute involved:
http://www.mainelegislature.org/legis/statutes/21-A/title21-Asec196-A.html