consideration plans and briefs filed by the public with the court during the first 30 days of the period in which the court is required to apportion.
3. Judicial review. The Supreme Judicial Court has original jurisdiction to hear any challenge to an apportionment law enacted by the Legislature, as registered by any citizen or group of citizens. If a challenge is sustained, the Supreme Judicial Court shall make the apportionment.
Section 25. Apportionment of county commissioner districts. County commissioner districts must be apportioned as follows.
1. Redistricting, generally. Beginning in 2021 and every 10 years thereafter, the apportionment commission established under Article IV, Part Third, Section 1-A shall review the existing county commissioner districts and, as necessary, reapportion those districts in each county to establish as nearly as practicable equally populated districts. The Speaker of the House of Representatives is responsible for calling the commission together to review the county commissioner districts. No action may be taken by the commission without a quorum of 7.
- A. The apportionment commission shall divide the number of commissioners in each county into the number of inhabitants of the county, excluding foreigners not naturalized, according to the latest Federal Decennial Census or a state census previously ordered by the Legislature to coincide with the Federal Decennial Census, to determine a mean population figure for each county commissioner district. Each county commissioner district must be formed of contiguous and compact territory and must cross political subdivision lines the least number of times necessary to establish as nearly as practicable equally populated districts. Whenever the population of a municipality entitles it to more than one district, all whole districts must be drawn within the municipal boundaries. Any population remainder within the municipality must be included in a district drawn to cross the municipal boundary as long as the population remainder within the municipality is contiguous to another municipality or municipalities included in the district. Any county that already meets the standards and guidelines for equally populated districts, as established by this section, this Constitution and the Constitution of the United States, need not be reapportioned.
