Redistricting in Wisconsin

[1] The Constitution, Supreme Court jurisprudence, and federal law allow significant latitude to the individual states to draw their congressional and legislative districts as they see fit, as long as each district contains roughly equivalent numbers of people (see Baker v. Carr, Wesberry v. Sanders, and Reynolds v. Sims) and provides for minority representation pursuant to the Voting Rights Act.

Article IV of the Constitution of Wisconsin mandates that redistricting must occur in the first legislative session following the publication of a new enumeration by the United States census.

At its first session after each enumeration made by the authority of the United States, the legislature shall apportion and district anew the members of the senate and assembly, according to the number of inhabitants.

The court found that the federal standard did not meet the requirements of the Wisconsin constitution, and ruled that all territory belonging to a legislative district must be actually connected.

The Wisconsin Legislative Reference Bureau compiles the county and ward data, with detailed population statistics, into a database which is usually ready by September 1.

For over a century in Wisconsin, there have been movements to implement a nonpartisan redistricting commission to draw state legislative districts, rather than leaving it in the hands of a partisan legislature or an arbitrary judicial panel.

Republicans sued the Secretary of State, Democrat Thomas Cunningham, in the Wisconsin Supreme Court to prevent the utilization of the new districts for the 1892 election.

Although this map adhered more closely to county lines, it still varied widely in district population, and was again challenged by Republicans in the Wisconsin Supreme Court.

Due to the extreme lateness of the maps, further legislation was needed to clarify the status of the existing nominations and the necessary process for getting nominees on the ballot for the new districts.

[20] Within four months, the commission produced a plan for redistricting which would restore equal representation in district populations, but it struggled to win majority support in the Republican-dominated Legislature.

Act 728) with a provision which delayed implementation until voters could register their opinion on the question of using land area as criteria for drawing districts.

[24]: 780 Nevertheless, Wisconsin Republicans and Republican-aligned interest groups did not give up on the idea, and, in the 1953 Legislature, proposed a new constitutional amendment to require land-based criteria for the drawing of Senate districts.

Thomson v. Zimmerman the Wisconsin Supreme Court nullified the 1953 referendum, ruling that the ballot language did not properly describe the constitutional change being proposed.

They further ruled that it was unconstitutional for the Legislature to enact more than one redistricting per decennial census unless Section 3 of Article IV of the Wisconsin Constitution were amended to allow it.

As in the 1950 reapportionment saga, Republicans continued attempting to utilize geographic area as criteria in the drawing of districts, which the Democratic governor, Gaylord Nelson, rejected.

Reynolds v. Zimmerman that the Wisconsin Constitution did not permit the Legislature to bypass the Governor in redistricting and further stated that if no new plan was enacted by May 1, the court would produce its own map by May 15.

[29] A last-ditch effort was made by the Legislature, but their final attempt was again rejected by Governor Reynolds, who criticized the partisan bias of the map, calling it "a fraud upon the people".

The new plan was embraced by Governor Reynolds, who called it, "the culmination of my four-year fight for equal voting rights for the people of the state of Wisconsin.

The 1970s redistricting cycle was the first to occur in Wisconsin after the federal government had formalized the "one-person, one-vote" mandate, written into the intent of the Voting Rights Act of 1965 and verified by the United States Supreme Court.

[33] Democratic state representative Fred Kessler led the effort to produce a map which took radical new steps to meet the "one-person, one-vote" requirement.

"[34] The Assembly Elections Committee backed Kessler's plan,[35] and the Senate concurred on the need to go to 99 districts and abandon county lines, but the two chambers remained divided on the final map.

[36] In early 1972, at the urging of Senate Republican leader Ernest Keppler, Governor Patrick Lucey appointed a commission to evaluate the redistricting plans to try to come to a consensus.

[41] The Wisconsin Supreme Court, prompted by Attorney General Robert W. Warren, declared that the existing 1964 boundaries were now unconstitutional due to population changes and needed to be redrawn.

The 1972 plan was also noteworthy for abandoning the adherence to county boundaries in the redistricting process, which led to more elaborate districts and gerrymanders in subsequent years.

A set of early challenges against the plan—alleging various Equal Protection Clause violations—were consolidated in the case Baldus v. Members of the Wisconsin Government Accountability Board.

The ruling in that case dismissed most of the plaintiffs claims, citing that, while the districts clearly were drawn to partisan benefit, the population distribution was roughly equal.

The United States Census Bureau announced in March 2021 that they would not meet their deadlines, and ultimately did not release detailed census-tract data until August 12, 2021—about five months behind schedule.

[77] Because the state court lacked relevant statutes or precedent, this "least changes" requirement was a novel standard without a basis in Wisconsin law or legal history.

[86] The Republican speaker of the Assembly, Robin Vos, responded with a threat to impeach the newest justice, Janet Protasiewicz, accusing her of prejudging the redistricting issue less than a month after she took office.

In a dissenting opinion, justice Brian Hagedorn pointed out that the Wisconsin Supreme Court still lacked any proper procedure for handling redistricting cases.

Original Wisconsin congressional districts.
Congressional redistricting after adding 1 district in 1848.
Rosenberry circa 1940
Changes in boundaries for the Wisconsin State Senate following the 1964 court redistricting plan
Territory which was moved to a new district
Districts which were entirely unchanged
Districts which contained none of their prior territory
Changes in boundaries for the Wisconsin State Senate following the 1972 redistricting plan
Territory which was moved to a new district
Changes in boundaries for the Wisconsin State Senate following the 1982 court redistricting plan
Territory which was moved into a new district
Districts which contained none of their prior territory