The judge shall seek approval in the judicial district to which the judge was originally appointed, except in case of assignments and transfers with the judge's consent, in which case the judge shall seek approval in the district where the judge has served the major portion of the judge's term. The judge shall designate on the declaration of candidacy the judicial district to which the judge was appointed, except in case of assignments and transfers in which case the judge shall designate the district where the judge has served the major portion of the judge's term.