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Apr 20, 2026 Plaintiffs and courts advanced multiple lawsuits challenging Trump administration actions and records practices Tier 1 · Primary Institutions and Governance
These filings and rulings showed courts continuing to process challenges to executive conduct, preserving institutional channels for review and disclosure.
Supporting reports
- Climate groups file lawsuit against US government over BP project approval — On the 16th anniversary of the Deepwater Horizon disaster, a coalition of five environmental groups filed a lawsuit against the Trump administration.
- Case update — Democracy Forward Foundation v. U.S. Department of Justice (D.D.C.) 1:26-cv-01206 — Plaintiff filed an amended complaint introducing an additional claim alleging that the DOJ violated the FOIA by failing to grant expedited processing for the requests made in this matter, citing exceptional media
- Case update — DSCC v. Trump (D.D.C.) 1:26-cv-01114 — State Attorneys General filed a motion for leave to intervene as Defendants and a memorandum in support of their motion.
Jun 20, 2025 The Supreme Court allowed a challenge to California's vehicle emission waiver to proceed Tier 1 · Primary Institutions and Governance
The decision reopened litigation over a long-standing state regulatory power, affecting the balance between federal and state environmental authority.
Supporting reports
- Supreme Court Allows Challenge to California's Emission Limits — The U.S.
- Supreme Court releases opinion in Diamond Alternative Energy, LLC v. EPA (24-7) — The Supreme Court released an official slip opinion in Diamond Alternative Energy, LLC v.
Jun 20, 2025 Congress enacted joint resolutions overturning an OCC bank-merger rule and an EPA air-quality rule Tier 1 · Primary Institutions and Governance
The laws used congressional disapproval to reverse agency rules, showing direct legislative intervention in regulatory governance.
Supporting reports
- Became Law: A joint resolution providing for congressional disapproval of the rule submitted by the Office of the Comptroller of the Currency — Congress enacted a joint resolution disapproving a rule from the Office of the Comptroller of the Currency regarding the review of applications under the Bank Merger Act, impacting regulatory oversight of bank mergers.
- Became Law: Joint Resolution Disapproving EPA Rule on Air Quality Standards — Congress enacted a joint resolution disapproving an EPA rule regarding the reclassification of major sources under the Clean Air Act, impacting environmental regulatory standards.
May 29, 2025 The Supreme Court issued its opinion in Seven County Infrastructure Coalition v. Eagle County Tier 1 · Primary Institutions and Governance
The opinion set binding national law on environmental review and agency obligations, affecting future federal project approvals.
Supporting reports
- Supreme Court releases opinion in Seven County Infrastructure Coalition v. Eagle County (23-975) — The Supreme Court released an official slip opinion in Seven County Infrastructure Coalition v.
- US Supreme Court Ruling on Utah Railway Project — On May 29, 2025, the US Supreme Court issued an 8-0 ruling in favor of a multibillion-dollar oil railway expansion project in Utah, overturning a lower court's decision that had halted the project.
May 9, 2025 Congress enacted resolutions disapproving several Department of Energy and CFPB rules Tier 1 · Primary Institutions and Governance
The laws showed Congress using the Congressional Review Act to reverse agency rules on energy efficiency and consumer finance.
Supporting reports
- Became Law: Providing for congressional disapproval of energy conservation standards — Congress enacted a resolution disapproving the energy conservation standards for commercial refrigeration set by the Department of Energy, effectively nullifying the rule.
- Became Law: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Department of Energy relating to "Energy Conservation Program for Appliance Standards: Certification Requirements, Labeling Requirements, and Enforcement Provisions for Certain Consumer Products and Commercial Equipment" — Congress enacted a resolution disapproving a Department of Energy rule on appliance standards, impacting energy conservation regulations.
- Became Law: A joint resolution disapproving the rule submitted by the Bureau of Consumer Financial Protection relating to "Defining Larger Participants of a Market for General-Use Digital Consumer Payment Applications" — The joint resolution disapproving the Bureau of Consumer Financial Protection's rule was enacted, nullifying the definition of larger participants in the digital payment market.
Mar 18, 2025 Democratic lawmakers called for investigations into Elon Musk's role in federal contracting and White House technology decisions Tier 1 · Primary Institutions and Governance
The requests showed Congress and allied officials trying to use oversight tools against possible conflicts of interest in executive operations.
Supporting reports
- Democrats demand investigation into Musk's potential corruption — Leading Democrats have called for an investigation into potential corruption involving Elon Musk, particularly concerning the Federal Aviation Administration's decision to cancel a $2.4 billion contract with Verizon
Mar 8, 2025 The SEC dropped lawsuits against Kraken and Coinbase Tier 1 · Primary Institutions and Governance
The decision marked a major enforcement retreat by a federal regulator and raised questions about equal application of financial rules.
Supporting reports
- SEC drops lawsuits against Kraken and Coinbase — Following the inauguration of President Donald Trump, the Securities and Exchange Commission (SEC) has dropped lawsuits against cryptocurrency companies Kraken and Coinbase.
Feb 19, 2025 Climate advocacy groups filed lawsuits against the Trump administration over expanded drilling and expedited permits Tier 1 · Primary Institutions and Governance
The suits used courts to contest whether the executive branch could bypass environmental protections and prior legal limits.
Supporting reports
- Climate advocacy groups file lawsuits against Trump administration — On February 19, 2025, climate advocacy groups, including the Sierra Club and Greenpeace, filed two lawsuits against the Trump administration.
- Environmental groups sue over rollback of Biden-era protections
- Notice of intent to sue over expedited infrastructure permits