The Map Waits for the Voters

Missouri's legislature drew new congressional districts last year, part of a mid-decade redistricting push backed by the president. The map would turn a delegation of six Republicans and two Democrats into seven and one, by dismantling the Kansas City seat held by Emanuel Cleaver.

It was passed. It was signed. On 8 September a federal judge ordered it used in November.

Two days later the Supreme Court blocked that order in a brief ruling with no noted dissents, and the state's secretary of state told local election officials to use the 2022 map instead. Ballots begin going out on 19 September.

The map lost not because a court found it unlawful, but because of a procedure most voters have never used.

The referendum provision of Missouri's constitution lets voters demand a statewide vote on a law the legislature has passed. The petition must be filed within ninety days of the session ending, signed by five percent of legal voters in each of two-thirds of the state's congressional districts.

The next subsection contains the sentence that decided this case: a measure referred to the people "shall take effect when approved by a majority of the votes cast thereon, and not otherwise."

Read plainly, filing a valid petition does more than schedule a vote. It suspends the law until the vote happens.

That is the whole mechanism, and it explains why the fight was over whether the petition counted rather than over the map itself.

Opponents of the new districts, organised as People Not Politicians, gathered the signatures. Secretary of State Denny Hoskins delayed deciding whether the measure would go on the ballot, then rejected it, arguing that redistricting plans are not subject to voter approval at all.

Missouri's Supreme Court, which has a Republican-appointed majority, disagreed unanimously. It found the petition legal, sufficient and timely, which under the constitution's own words left the new map on hold pending a statewide vote.

The same day a federal judge, Stephen Clark, reached the opposite practical result. He ruled that reverting to the old map would itself violate federal constitutional guarantees and ordered the new one used.

The governor and attorney general announced that evening that the redrawn map would be used in November.

For forty-eight hours Missouri had two binding instructions pointing in opposite directions and a ballot that had to be finalised.

The Supreme Court's order resolved that without explaining why. It is still possible to say what kind of problem it resolved.

A 2006 decision, Purcell v. Gonzalez, is the source of the principle that federal courts should be very reluctant to change election rules close to an election, because late changes confuse voters and burden the officials running the vote.

The principle is usually invoked against challengers who want a court to alter a map. Here the late change was the federal order itself, arriving after the state's highest court had spoken and days before ballots were due.

Whatever the justices' reasons, the effect was to leave the question with the state court that had already answered it under the state's own constitution.

The larger lesson is about where the power over a map actually sits.

Most accounts of redistricting describe a contest between legislatures that draw lines and courts that review them. Missouri adds a third actor with a blunt tool: a few hundred thousand signatures can stop a map from taking effect before anyone rules on whether it is fair.

That tool is available only in states whose constitutions provide a referendum on ordinary legislation, and only where a map passes as ordinary legislation rather than through a commission.

It also carries a built-in delay that no court can shorten. The map is not rejected; it waits. If voters approve it, it takes effect, and the fight moves to the next election cycle.

The secretary of state's election office, which argued that maps were beyond the referendum's reach, is now administering an election on the districts it tried to discard.

The question it raised has not gone away. Whether a congressional map is the kind of law the referendum covers was answered by one state court for one state, and the next legislature to attempt a mid-decade map will draft with that answer in front of it.

The voters, meanwhile, will get the last word on a map they have already stopped once, which is more than most redistricting fights ever offer them.