Redistricting & Legal Work

Court-appointed roles as Special Master, consultant, and expert witness in redistricting and voting-rights cases across the United States. Select a case for reports, maps, and details.

Interactive map: Mid-decade congressional redistricting — expected partisan seat shifts from newly enacted 2026 maps →

Interactive map: The 2022 U.S. House on an equal-area cartogram — every district drawn the same size, morphing to and from the geographic map →

Interactive maps: Change in House apportionment — which states gained and lost seats, and how many.

How these maps are built: sizing each state to its seat count, carving it into equal-area districts, and matching those to the real ones.

Browse all interactive maps →

Wisconsin district map

Wisconsin

Clarke v. WEC (2024)

Court co-consultant to the Wisconsin Supreme Court, evaluating remedial Assembly and Senate proposals after the prior maps were found unconstitutional.

Case details →
New York district map

New York

Harkenrider v. Hochul (2022)

Appointed Special Master by the New York Supreme Court to draw the 2022–2030 Congressional and State Senate maps.

Case details →
Pennsylvania district map

Pennsylvania

Legislative Reapportionment Commission (2021–2022)

Redistricting consultant to the bipartisan commission that drew the state legislative maps, unanimously affirmed by the Pennsylvania Supreme Court.

Case details →
Alabama district map

Alabama

Allen v. Milligan (2023)

Submitted two remedial congressional plans for the court's consideration following the Supreme Court's decision.

Case details →
Nassau County, NY district map

Nassau County, NY

NY Communities for Change v. County of Nassau (2025)

Expert witness for the plaintiffs in a New York Voting Rights Act challenge; the county adopted a map mirroring features of my illustrative plan.

Case details →
Tennessee district map

Tennessee

Moore v. Lee (2022)

Expert witness for the plaintiffs; filed five reports on the Tennessee House and Senate maps.

Case details →
New Mexico district map

New Mexico

Republican Party of New Mexico v. Oliver (2023)

Filed an amicus brief in support of neither party in a state partisan-gerrymandering challenge.

Case details →
Georgia district map

Georgia

Wright v. Sumter County School Board (2020)

Assisted the federal court-appointed Special Master in crafting a remedial plan addressing Voting Rights Act violations.

Case details →
Utah district map

Utah

Navajo Nation v. San Juan County (2017)

Helped create remedial plans that allowed the Navajo Nation to elect a majority of the county commission for the first time.

Case details →
Virginia district map

Virginia

Bethune-Hill v. Virginia Board of Elections (2019)

Assisted in developing remedial districts after a racial gerrymandering ruling, helping redraw 25 of the 100 House of Delegates districts.

Case details →