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Aug 7, 2026 US Senate passed a Russia sanctions bill granting broad tariff authority Corroborated Institutions and Governance
The Senate approved sanctions legislation that also delegates significant new tariff powers to the president, raising separation-of-powers concerns about trade authority.
Supporting reports
- US Senate passes Russia sanctions bill with tariff authority — The US Senate approved the Lindsey O Graham Sanctioning Russia Act by an 86-11 vote on August 7, 2026, imposing new sanctions, visa bans, and tariffs of up to 500% on Russian exports.
Jul 27, 2026 The FCC adopted new submarine cable licensing rules with security conditions and faster review paths Tier 1 · Primary Institutions and Governance
The rules changed how a key regulator balances national security review with infrastructure approvals for critical communications systems.
Supporting reports
- FCC Adopts New Rules for Submarine Cable Licensing — The Federal Communications Commission (FCC) has adopted a Second Report and Order establishing a regulatory framework for licensing submarine line terminal equipment (SLTE) owners and operators.
Jul 24, 2026 Two small businesses sued over new Section 301 tariffs and said the administration exceeded its authority Tier 1 · Primary Institutions and Governance
The lawsuit challenged the legal basis for broad trade action and tested limits on delegated executive power.
Supporting reports
- Two small American businesses sue Trump administration over new tariffs — Two small American businesses, Burlap and Barrel and Collective Horology, have filed a lawsuit against the Trump administration over newly announced tariffs.
- Complaint filed — Burlap and Barrel, Inc. v. Greer — On July 24, 2026, Burlap and Barrel, a New York spice importer, and Collective Horology, a California retailer of European watches, filed a putative class action complaint in the United States Court of International
Mar 9, 2026 The Supreme Court invalidated Trump's tariffs Corroborated Institutions and Governance
The ruling reaffirmed that major trade taxes require lawful authority and showed the judiciary checking executive overreach.
Supporting reports
- Supreme Court Invalidates Trump’s Tariffs — The US Supreme Court has invalidated tariffs imposed by former President Donald Trump, potentially allowing for up to $175 billion in refunds to businesses that paid these import taxes.
- Supreme Court strikes down Trump's tariffs — The Supreme Court ruled 6-3 that the majority of tariffs imposed by former President Trump were unconstitutional, as they exceeded his authority under the International Emergency Economic Powers Act (IEEPA).
Feb 28, 2026 The Supreme Court and lower trade courts ruled Trump's earlier tariffs unlawful and ordered refunds while later suspending immediate compliance Tier 1 · Primary Institutions and Governance
The rulings showed courts checking executive trade power while also managing the pace and scope of compliance with those limits.
Supporting reports
- Supreme Court Rules Trump Tariffs Illegal — On February 20, 2026, the U.S.
- Judge Orders Refunds for Unlawful Tariffs — Judge Eaton of the Court of International Trade ordered the U.S.
- US Trade Court Orders Refunds for Tariffs — A US trade court judge has ordered the federal government, specifically US Customs and Border Protection (CBP), to begin repaying potentially billions of dollars in refunds for tariffs paid by importers.
Feb 19, 2026 The Supreme Court ruled that Trump could not use IEEPA to impose tariffs Tier 1 · Primary Institutions and Governance
The ruling reaffirmed that major taxing power belongs to Congress and marked a direct judicial check on unilateral executive trade authority.
Supporting reports
- Supreme Court Ruling on Tariffs Sparks Political Reactions — The Supreme Court's decision to overturn many of Trump's tariffs has elicited varied political reactions.
- Supreme Court Overturns Trump's Tariffs — The Supreme Court ruled 6-3 that President Trump exceeded his authority by imposing sweeping tariffs under the International Emergency Economic Powers Act (IEEPA).
- Supreme Court rules IEEPA tariffs unlawful — On February 20, 2026, the Supreme Court ruled 6-3 that the International Emergency Economic Powers Act (IEEPA) does not authorize the President to impose tariffs, reinforcing the constitutional principle that Congress
Feb 12, 2026 The House of Representatives voted to rescind tariffs on Canada imposed under a national emergency Tier 1 · Primary Institutions and Governance
The vote was a legislative check on presidential use of emergency powers to drive trade policy without normal congressional control.
Supporting reports
- US House votes to rescind Trump-imposed tariffs on Canada — The US House of Representatives voted 219 to 211 to rescind tariffs imposed by President Donald Trump on Canada, marking a rare bipartisan rebuke of the president's trade policy.
Jan 20, 2026 Bipartisan lawmakers announced legislation to block Trump's threatened tariffs on European allies Corroborated Institutions and Governance
The effort sought to reclaim congressional authority over trade and check executive use of emergency powers for geopolitical coercion.
Supporting reports
- US Lawmakers Announce Legislative Action to Block Trump's Tariffs — On January 20, 2026, US lawmakers from both parties announced plans to introduce legislative measures to block President Donald Trump's threatened tariffs on European allies.
Jan 13, 2026 The Supreme Court heard a challenge to President Trump’s global tariffs Corroborated Institutions and Governance
The case tested whether courts would limit presidential use of emergency economic powers without clear congressional authorization.
Supporting reports
- Supreme Court Hears Case on Trump's Global Tariffs — The U.S.
Nov 5, 2025 The Senate voted to nullify Trump's reciprocal tariffs Corroborated Institutions and Governance
The vote asserted Congress's role in trade and taxation even though the House was unlikely to act.
Supporting reports
- US Senate votes to nullify Trump’s reciprocal tariffs — The US Senate voted 51 to 47 to nullify the Trump administration's reciprocal tariffs, with four Republican senators joining Democrats in the vote.
Nov 5, 2025 The U.S. Supreme Court heard arguments on whether Trump's tariffs exceeded presidential authority under IEEPA Corroborated Institutions and Governance
The case tested the boundary between executive emergency claims and Congress's constitutional control over tariffs and taxes.
Supporting reports
- US Supreme Court hears oral arguments on Trump tariffs — The US Supreme Court heard oral arguments regarding the legality of tariffs imposed by the Trump administration under the International Emergency Economic Powers Act (IEEPA).
- Supreme Court Hears Case on Trump's Tariffs — The Supreme Court is currently hearing a pivotal case regarding Trump's tariffs, with indications that even conservative justices are skeptical of the administration's arguments.
- Supreme Court Hears Arguments on Trump's Tariff Policy — On November 6, 2025, the U.S.
Oct 6, 2025 The Supreme Court opened a new term with major cases on voting, agency independence, tariffs, and LGBTQ rights Corroborated Institutions and Governance
The docket signaled that core questions about elections, rights, and executive power would be shaped through the courts.
Supporting reports
- Supreme Court Begins New Term with Key Cases on Democratic Governance — The U.S.
- Supreme Court to Hear Bost v Illinois on Mail-In Ballots — On October 8, 2025, the U.S.
- Supreme Court to Hear Case on Conversion Therapy Ban — On November 5, 2025, the U.S.
Sep 18, 2025 The Supreme Court set arguments on Trump's tariffs for November 5 Corroborated Institutions and Governance
The Court agreed to hear a major separation-of-powers dispute over whether a president can impose broad tariffs without Congress.
Supporting reports
- US Supreme Court to Hear Arguments on Trump's Tariffs — The US Supreme Court has scheduled a hearing for November 5 to address the legality of former President Donald Trump's global tariffs.
Sep 8, 2025 The Supreme Court agreed to hear Trump’s tariff appeal and consolidated related cases Tier 1 · Primary Institutions and Governance
The Court’s intervention put a major dispute over presidential trade authority on a fast track with broad institutional stakes.
Supporting reports
- US Supreme Court to Decide on Trump’s Tariffs — The US Supreme Court is set to decide on the legality of former President Donald Trump's tariffs, which have been challenged in lower courts.
- Supreme Court to Hear Trump's Tariff Appeal — The Supreme Court agreed to hear Trump's emergency appeal on the legality of his global tariffs, with oral arguments set for November.
- Supreme Court grants certiorari and consolidates cases involving President Trump — The Supreme Court granted a petition for a writ of certiorari before judgment in the case of Learning Resources, Inc., et al.
Sep 3, 2025 The Trump administration filed emergency appeals over the tariff ruling and the FTC commissioner reinstatement Tier 1 · Primary Institutions and Governance
The appeals sought Supreme Court backing for broader presidential control over trade and independent agencies.
Supporting reports
- Trump Administration Files Emergency Appeal on Tariffs — The Trump administration filed an emergency appeal with the Supreme Court to reverse a lower court ruling that found most of the president's tariffs illegal, arguing that the tariffs promote economic prosperity.
- Trump Files Emergency Appeal on FTC Appointee — Trump filed an emergency appeal with the Supreme Court to block the reinstatement of a Biden-appointed FTC member, challenging the legality of her termination.
- Trump petitions US Supreme Court to overturn trade tariffs ruling — Former President Donald Trump has filed a petition with the US Supreme Court to overturn a federal appeals court decision that deemed his trade tariffs illegal.
Aug 30, 2025 A federal appeals court ruled that most of Trump's tariffs exceeded presidential authority Corroborated Institutions and Governance
The ruling reinforced congressional control over tariffs and checked the use of emergency powers for broad trade policy.
Supporting reports
- Federal appeals court rules against Trump's tariffs — A federal appeals court in Washington DC ruled 7-4 that former President Donald Trump overstepped his presidential powers by imposing sweeping tariffs on nearly all of the United States' trading partners.
- Federal court rules most of Trump's tariffs illegal — A federal appeals court in Washington DC ruled that former President Donald Trump overstepped his presidential powers with most of his tariff policies.
- Federal Appeals Court Strikes Down Trump's Tariffs — A federal appeals court upheld a lower court's ruling that struck down President Trump's use of emergency powers to impose tariffs, stating that Congress did not grant the president such broad authority under the
Aug 2, 2025 President Trump announced new tariff rates and delayed implementation to August 7 Tier 1 · Primary Institutions and Governance
The announcement used executive trade authority to alter economic policy with limited legislative involvement and immediate market consequences.
Supporting reports
- Trump announces new tariff rates — President Trump announced new tariff rates to be imposed on other countries, delaying their implementation until August 7, 2025, to allow Customs and Border Protection to prepare.
- Executive Order on Tariff Modifications — President Trump issued an executive order modifying tariff rates for dozens of countries, following previous delays in implementation.
Jul 28, 2025 The U.S. Court of Appeals for the Federal Circuit heard a challenge to President Trump's tariff authority Corroborated Institutions and Governance
The case tested whether the president had exceeded statutory limits and bypassed Congress on trade policy.
Supporting reports
- US Court of Appeals to Hear Case on Trump's Tariff Authority — On Thursday, the US Court of Appeals for the Federal Circuit will hear oral arguments in the case VOS Selections v Trump.
- DOJ argued a case challenging Trump's authority to issue tariffs without congressional approval — The Department of Justice presented arguments in a lawsuit that challenges Trump's authority to impose tariffs without congressional approval.
- Federal appeals court reviews Trump's tariff authority — A federal appeals court in Washington DC is reviewing whether former President Donald Trump exceeded his authority by imposing "reciprocal" tariffs on numerous US trading partners.
May 31, 2025 The U.S. Court of Appeals for the Federal Circuit paused the lower court ruling against Trump's tariffs Corroborated Institutions and Governance
The pause let contested tariffs stay in force and showed how appellate procedure can preserve executive action during review.
Supporting reports
- Appeals court pauses ruling overturning Trump’s tariffs — An appeals court has temporarily paused a federal court ruling that overturned many of Donald Trump’s tariffs, allowing the tariffs to remain in place while the appeals court reviews the arguments.
- U.S. Court of Appeals pauses ruling on Trump's tariffs — The U.S.
- Court rulings against tariffs prompt administration appeal — In the past week, several court rulings have been issued against the Trump administration's tariffs, leading the administration to initiate appeals.
May 29, 2025 The Federal Circuit temporarily stayed the tariff ruling while appeals proceeded Tier 1 · Primary Institutions and Governance
The stay preserved executive tariffs for the moment while higher courts reviewed the scope of presidential trade authority.
Supporting reports
- Appeals court grants temporary pause on ruling against Trump tariffs — An appeals court has granted a temporary pause on a ruling by the New York-based court of international trade that declared Donald Trump's tariffs illegal.
- Motion granted — Oregon v. U.S. Department of Homeland Security (Ct. Intl. Trade) 1:25-cv-00077 — The Federal Circuit granted Defendants' motion to consolidate the appeal with V.O.S.
- Motion granted — V.O.S. Selections Inc. v. Trump (Ct. Intl. Trade) 1:25-cv-00066 — The Federal Circuit granted Defendants' motion to consolidate the appeal with State of Oregon v.
May 28, 2025 The Court of International Trade ruled that major Trump tariffs were unlawful Tier 1 · Primary Institutions and Governance
The decision reaffirmed that tariff power is bounded by statute and constitutional separation of powers, not open-ended executive emergency claims.
Supporting reports
- Appeal filed — Oregon v. U.S. Department of Homeland Security (Ct. Intl. Trade) 1:25-cv-00077 — The court granted plaintiffs summary judgment holding the tariffs unlawful.
- Summary judgment ruling — V.O.S. Selections Inc. v. Trump (Ct. Intl. Trade) 1:25-cv-00066 — The court granted plaintiffs' summary judgment holding the tariffs unlawful.
- Federal Courts Rule Trump's Tariffs Unconstitutional — Two federal courts have ruled that the majority of tariffs imposed by former President Trump violate the Constitution.
Apr 23, 2025 A dozen states sued in the Court of International Trade to block President Trump's tariff policy. Tier 1 · Primary Institutions and Governance
The lawsuit challenged whether sweeping tariffs rested on lawful authority, turning trade policy into a major separation-of-powers dispute.
Supporting reports
- States Sue Trump Administration Over Tariff Policy — A dozen states filed a lawsuit in the US Court of International Trade to block President Trump's tariff policy, arguing that the tariffs are based on "whims rather than the sound exercise of lawful authority." The
- Trump administration faced lawsuits over tariffs — Twelve states have filed lawsuits against the Trump administration regarding its tariff policies, highlighting growing legal challenges to the administration's economic strategies.
Apr 16, 2025 California filed a lawsuit challenging Trump's tariffs as an unconstitutional bypass of Congress Tier 1 · Primary Institutions and Governance
The suit raised a separation-of-powers challenge to unilateral tariff policy and sought judicial limits on executive trade authority.
Supporting reports
- California files lawsuit against Trump's tariffs — On April 16, 2025, California Governor Gavin Newsom and Attorney General Rob Bonta filed a lawsuit in federal court challenging the legality of tariffs imposed by former President Donald Trump.
- Case update — State of California v. Trump (N.D. Cal.) 3:25-cv-03372 — Defendants filed a motion to transfer the case to the U.S.
Apr 7, 2025 Senators Chuck Grassley and Maria Cantwell introduced a bipartisan bill to limit presidential tariff powers Corroborated Institutions and Governance
The bill sought to restore congressional control over tariffs and reassert legislative checks on emergency trade actions.
Supporting reports
- Bill Introduced to Limit Presidential Tariff Powers — Senators Chuck Grassley and Maria Cantwell introduced a bipartisan bill aimed at limiting the president's ability to impose or increase tariffs without congressional approval.
- Congress proposes bills to counter Trump's tariffs — In response to President Trump's tariffs, at least two bills have been proposed in Congress aimed at reversing these economic measures.
- Senate Republicans propose bill to limit Trump's tariff powers — Seven Republican senators signed a bill aimed at limiting President Trump's ability to impose tariffs, asserting that the power to levy tariffs belongs to Congress.
Apr 2, 2025 The Senate passed a resolution to block Trump's tariffs on Canadian products Corroborated Institutions and Governance
The vote was a bipartisan attempt to reclaim legislative authority over trade and check emergency-based executive action.
Supporting reports
- Senate Passes Resolution to Block Tariffs on Canadian Products — The Senate passed a resolution to block President Trump's tariffs on Canadian products, with four Republican senators joining Democrats in the vote.
- Senate Passes Resolution to Eliminate Trump's Canadian Tariffs — The Senate has passed a resolution to eliminate President Trump's tariffs on Canadian imports.
- Senate Votes to Rescind Trump Canada Tariffs — The U.S.