Northern Mariana Islands

Executive power rests with a Governor elected to a four-year term on a joint ticket with a Lieutenant Governor — voters cast a single vote for the pair, and if no ticket wins a majority, the top two go to a runoff. No person may be elected Governor more than twice, a lifetime cap rather than the "consecutive terms" limit most states use. If the governorship falls vacant, the Lieutenant Governor becomes Governor and the presiding officer of the Senate moves up to Lieutenant Governor.

The Governor appoints the heads of the executive departments with the advice and consent of the Senate. The Attorney General, however, no longer answers to the Governor: a 2012 constitutional amendment (House Legislative Initiative 17-2, ratified by voters that November) converted the office from an appointed cabinet post to one elected Commonwealth-wide on a nonpartisan ballot for a four-year term, and the first elected Attorney General took office in January 2015.

The CNMI also elects officials most states don’t: a mayor for each of the main islands — Saipan, Tinian and Aguiguan, Rota, and the lightly populated Northern Islands — plus an elected Board of Education. And because the Commonwealth is a territory, its voice in Washington is a non-voting Delegate to the U.S. House of Representatives, an office the CNMI has only had since 2009.

The Northern Marianas Commonwealth Legislature is bicameral. The Senate has 9 members — three elected at large from each of three senatorial districts: Saipan (with the islands to its north), Tinian and Aguiguan, and Rota. That design gives Rota and Tinian the same Senate weight as far more populous Saipan, a deliberate federal-style balance among the islands. Senators serve four-year staggered terms. The House of Representatives has 20 members serving two-year terms, with seats apportioned by population — most from Saipan, plus one each for Rota and for Tinian and Aguiguan. Neither chamber has term limits.

This is a modestly paid legislature: salaries are set by statute at $32,000 a year, a figure that landed after the CNMI Supreme Court struck down a self-awarded raise to $70,000 as unconstitutional. The Constitution caps regular sessions at 90 session days each year, so lawmaking is concentrated rather than year-round.

A bill is introduced in either chamber, referred to committee, and — if reported out — voted on the floor. After passing its chamber of origin it repeats the process in the other chamber, and differences are reconciled before final passage. The bill then goes to the Governor, who has 20 days to act on a regular bill and 40 days on an appropriation bill; if the Governor neither signs nor vetoes within that window, the bill becomes law without a signature.

A veto can be overridden by two-thirds of the members in each house. The Governor also holds a line-item veto over appropriation bills, striking individual spending items without rejecting the whole measure.

There is a second lawmaking track the states don’t have: the Covenant itself. Its fundamental provisions — the political union, U.S. sovereignty, and the mutual-consent guarantee — sit above both CNMI law and ordinary federal legislation, and can only be modified with the agreement of both the CNMI and the United States.

The Governor appoints department heads, justices, and judges with Senate confirmation, submits an annual balanced budget, declares states of emergency, and may call the Legislature into special session for up to ten consecutive days. The veto toolkit is strong: a regular veto, a line-item veto on appropriations, and generous review windows. The Governor may grant reprieves, commutations, and pardons after conviction, following consultation with a board of parole.

The deeper limits on the office are federal. Since 2009, immigration in the CNMI has been administered under federal law — a major shift, because for its first three decades the Commonwealth ran its own immigration system, which fueled (and ultimately ended with) the islands’ garment-manufacturing era. Federal spending and program decisions that shape the local budget are made in Washington, where the CNMI’s delegate cannot cast a floor vote.

The Commonwealth judiciary has two tiers: the CNMI Supreme Court (a chief justice and at least two associate justices) and the Superior Court, the trial court of general jurisdiction, with at least one full-time judge assigned to Rota and to Tinian. The Governor appoints justices and judges with Senate confirmation; justices serve eight-year terms and judges six-year terms, then face the voters in yes-or-no retention elections.

Alongside the Commonwealth courts sits the District Court for the Northern Mariana Islands, a federal court created under the Covenant whose judge is appointed by the President for a ten-year term — unlike life-tenured federal judges in the states. Its appeals go to the Ninth Circuit.