State Case Database
Search State Court Report's database of significant state supreme court decisions and pending cases. Download decisions and briefs for cases that develop state constitutional law. This is a selected database and does not include every state supreme court case. See methodology and "How to Use the State Case Database" for more information.
This database is updated monthly, although individual cases may be updated more frequently. Last updated comprehensively with cases decided through March 2025.
Featured Cases
Republican National Committee v. Eternal Vigilance Action, Inc; Georgia v. Eternal Vigilance Action
The Georgia Supreme Court ruled invalid under state nondelegation principles four of seven rules passed by the Georgia State Election board, while upholding one rule. The court did not decide the validity of two other rules, holding that the plaintiffs lacked standing to challenge the provisions.
Planned Parenthood of Montana v. State (Planned Parenthood 1)
Montana Supreme Court held that a 20-week abortion ban; restrictions on medication abortions, including a telehealth ban and 24-hour waiting period; and requirement that providers give patients an opportunity to view an ultrasound and listen to a fetal heartbeat violate the express right to privacy in the state constitution.
Care and Prevention of Eve
Massachusetts Supreme Judicial Court held that department of children and families violated the state constitution's free exercise of religion protection when it vaccinated a child temporarily in its custody over the religious objections of her parents. Parents who have temporarily lost custody of their children retain a residual right to direct their religious upbringing, and the state must demonstrate that allowing the child to remain unvaccinated would substantially hinder the department’s compelling interest in the vaccination.
State v. Mercedes
Held that officers were not required to administer warnings pursuant to article I section 7 of the Washington constitution as interpreted by prior caselaw -- informing individuals of their right to refuse, limit, or revoke consent -- prior to the warrantless consensual entries onto the defendant's outdoor property for investigative purposes
Simon v. Demuth
Ruled that the quorum clause in Article IV, Section 13, of the Minnesota Constitution requires a majority of the total number of seats of which each house may consist to constitute a quorum, without reference to vacancies
Gonzales v. Markland
Held that the use of a jury district for manslaughter trial comprised of two counties did not violate the “county or district” terminology of art. 6, § 7 of the South Dakota Constitution, granting the right to a trial by a “jury of the county or district in which the offense is alleged to have been committed”
McCombie v. Illinois State Board of Elections
Refused to accept an original action by the state’s house majority leader and voters, claiming that house districts drawn in 2021 are partisan and not compact, finding the complaint untimely and barred by laches because the plaintiffs did not exercise due diligence in bringing suit. The dissenting justice said the majority was wrong to discredit the plaintiffs’ argument that they had to collect data from multiple election cycles. Because the Illinois high court has never adjudicated a state constitutional partisan gerrymandering claim before, he opined, it has not provided guidance on whether such data — which was required for federal constitutional claims until the U.S. Supreme Court in Rucho v. Common Cause (2019) ruled such claims cannot be brought — is applicable for a state constitutional challenge.
Rivas v. Brownell
Held that a statute-of-limitations tolling provision in a supervisory order issued in response to the COVID-19 pandemic did not violate the separation of powers nor the affected drivers' rights to procedural due process
People v. Taylor; People v. Czarnecki
Michigan Supreme Court held that mandatory life-without-parole sentences violate the state constitution’s protection against “cruel or unusual” punishment for anyone under age 21 at the time of the offense. The decision extends the court’s 2022 ruling in People v. Parks that such sentences are unconstitutional for those 18 or under.
McCarty v. Missouri Secretary of State
Missouri Supreme Court held that plaintiff business groups and voters had failed to show that the ballot summary and fiscal note summary for an approved measure increasing the state's minimum wage and providing paid sick leave were inadequate or unfair. The court also held that its constitutionally and statutorily derived original jurisdiction over post-election contests is limited to matters related to the election process and does not extend to claims about the validity of a ballot measure.
N'Da v. Hybl
Nebraska Supreme Court held that statutory requirement that applicant seeking certificate to provide nonemergency medical transport must show the proposed service is required by "public convenience and necessity" does not facially violate state constitutional due process or bans on "special laws" or laws granting "special privileges and immunities." Also held that that the Nebraska Constitution's due process and equal protection clauses are coextensive with their federal equivalents, so federal rational basis review applies to substantive due process challenges to economic regulations, not the heightened standard the court had applied in a line of cases from the early 20th century.
League of United Latin American Citizens of Iowa v. Pate
Iowa Supreme Court held the plaintiff organization did not have standing to seek to dissolve an injunction entered in a separate case that barred the secretary of state from providing voter registration forms in languages other than English, by claiming such materials fall within an exception to the state law underlying the injunction. The law generally requires all "official documents" to be in English but exempts "language usage required by or necessary to secure" state constitutional or federal law rights. According to the state high court, an organization's expenditure of resources in response to a law that does not violate or regulate its rights, status, or legal relations is not a legally cognizable injury establishing standing.
State of Washington v. Gator's Custom Guns
Washington Supreme Court reversed a lower court and upheld the state's ban on selling or manufacturing magazines that hold more than ten rounds of ammunition. The majority held that large-capacity magazines are “not” arms within the scope of the state or federal constitutional right to bear arms, and the ability to purchase them is not "necessary to the realization of the core right to possess a firearm in self-defense."
