The urgent question of whether ranked-choice voting can be used in Maine’s June 12 primary is headed for the Maine Supreme Judicial Court amid legal maneuvering that the plaintiffs’ attorney called a “one-of-a-kind case.” Attorneys for the Maine Senate — which filed a suit last week seeking to stop ranked-choice voting — and Secretary of State Matt Dunlap, have been working for days on crafting the questions that they want the law court to decide specifically regarding the legality of ranked-choice voting.