Maine constitution
Article VI: judicial power
Section 6

Judges and registers of probate shall be elected by the people of their respective counties, by a plurality of the votes given in, at the biennial election on the Tuesday following the first Monday of November, and shall hold their offices for 4 years, commencing on the first day of January next after their election. Vacancies occurring in said offices by death, resignation or otherwise, shall be filled by election in manner aforesaid at the November election, next after their occurrence; and in the meantime, the Governor may fill said vacancies by appointment, and the persons so appointed shall hold their offices until the first day of January next after the election aforesaid.