Constitutional Litigation

Lawsuits involving claims under the First and Fourteenth Amendments to the U.S. Constitution.

1. State Compensation Case, Reiwa 5 (wa) No. 8517

2. Jurisdiction: Japan (March 2025)
3. Original Case: Reiwa 5 (wa) 8517 Kokka Baisho Seikyu Jiken
4. VictimsNoneDefendantsThe State of JapanPlaintiffsNoneInvestigatorsNoneProsecutorsNoneDefense AttorneysNonePlaintiff AttorneysNoneJudgesNoneInstitutionsTokyo District Court
5. Case Tags: Constitutional Litigation;Forced Sterilization;State Redress;Eugenic Protection Law

1. Reiwa 5 (Gyo-U) 299 Case Seeking Confirmation of Unconstitutionality of Deprivation of Young Adults' Right to Stand for Election

2. Jurisdiction: Japan (2025)
3. Original Case: 令和5(行ウ)299 若年成人被選挙権剥奪違憲確認等請求事件
4. VictimsNoneDefendantsGovernment of JapanPlaintiffsPlaintiffs' Group for Lowering the Age of CandidacyInvestigatorsNoneProsecutorsNoneDefense AttorneysGovernment CounselPlaintiff AttorneysMakoto ItoYoung Lawyers Association of JapanJudgesPresiding Judge of the Tokyo District CourtInstitutionsTokyo District CourtNational Diet
5. Case Tags: Constitutional Litigation;Age Discrimination;Electoral Law Reform;Youth Political Rights

1. Reiwa 7 (Gyo-Ke) No. 9 Election Invalidation Case

2. Jurisdiction: Japan (July 28, 2025)
3. Original Case: 令和7(行ケ)9 選挙無効請求事件
4. DefendantsState of JapanPlaintiffsHidetoshi MasunagaPlaintiff AttorneysHidetoshi MasunagaJudgesPresiding Judge of Tokyo High CourtInstitutionsTokyo High Court
5. Case Tags: Election Invalidation Lawsuit;Vote Weight Disparity;House of Councillors Election;Constitutional Litigation

1. 2025 House of Representatives Election Invalidation Case (Population Disparity)

2. Jurisdiction: Japan (2025)
3. Original Case: 令和7(行ケ)2 人口比例選挙請求事件
4. DefendantsThe State of JapanPlaintiffsHiroshi KamiwakiJudgesYukihiko Imasaki (Chief Justice)InstitutionsSupreme Court of Japan, Grand Bench
5. Case Tags: Constitutional Litigation;Vote Value Disparity;Supreme Court Grand Bench;Reiwa Era Case

1. Pope v. Cook et al

2. Jurisdiction: United States (May 30, 2023)
3. DefendantsKristi CookStephen DayJohn ManganoAlice O'LenickBen SatterfieldPlaintiffsGarland PopeJudgesSteven D. GrimbergInstitutionsUnited States District Court for the Northern District of Georgia
4. Case Tags: Election Law;Constitutional Litigation;Standing;Mail-in Voting

1. Case for Revocation of the Decision to Dismiss the Objection to Non-Registration on the Electoral Register

2. Jurisdiction: Japan (April 2026)
3. Original Case: 選挙人名簿不登録異議申出棄却決定取消請求事件
4. Key Figures: Park Yong-gi (Plaintiff, a South Korean national and permanent resident of Japan) vs. Shinjuku Ward Election Administration Commission (Defendant)
5. Case Tags: Voting Rights;Constitutional Litigation;Administrative Revocation;Foreign Residents' Suffrage