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Jul 21, 2026 Defense Secretary Pete Hegseth asked the Senate for nearly $88 billion in supplemental Iran-war funding and defended a much larger military budget Tier 1 · Primary Institutions and Governance
Large war and budget requests forced Congress to confront executive military expansion through appropriations and oversight.
Supporting reports
- Defense Secretary Requests Additional $88 Billion for War on Iran — During a Senate appropriations committee hearing, U.S.
- Pete Hegseth Testifies on Military Budget Increase — On July 21, 2026, U.S.
- Pentagon Requests Additional Funding Amid War Costs — Secretary of Defense Pete Hegseth and Chairman of the Joint Chiefs of Staff General Dan Caine testified before the Senate Appropriations Committee, requesting an urgent $67 billion to sustain Pentagon operations until
Jul 14, 2026 President Trump announced the reinstatement of an Iranian blockade and a U.S. security-fee role in the Strait of Hormuz Corroborated Power and Authority
The announcement asserted sweeping wartime and trade authority with limited visible congressional buy-in, raising separation-of-powers concerns.
Supporting reports
- Trump announces reinstatement of Iranian blockade — On July 13, 2026, President Trump announced via social media that the U.S.
- Trump announces blockade on Iran — President Trump announced the reimposition of a blockade on Iran, declaring the U.S.
Jun 20, 2026 President Trump threatened Iran and proposed U.S. control or tolls in the Strait of Hormuz during talks. Corroborated Power and Authority
The threats showed personalized use of executive and allied power in foreign policy, bypassing normal deliberation and raising the risk of coercive military and economic action.
Supporting reports
- Lindsey Graham Comments on Iran Negotiations — Senator Lindsey Graham stated in a CBS interview that if the Iran Memorandum of Understanding (MOU) deal fails, Trump will take control of the Strait of Hormuz by force and charge tolls.
- Trump Threatens Iran on Social Media — Former President Trump posted on Truth Social threatening to "hit Iran very hard again" if a deal was not reached during the ongoing negotiations in Switzerland.
- Trump Threatens Tolls on Ships in Hormuz Strait — On June 20, 2026, President Trump threatened to impose U.S.
Mar 14, 2026 President Trump ordered the bombardment of Iran without congressional authorization Corroborated Power and Authority
The strike concentrated war-making power in the presidency and weakened the constitutional role of Congress in authorizing major military action.
Supporting reports
- Trump Orders Bombardment of Iran — President Donald Trump ordered a bombardment of Iran, marking a significant escalation in tensions between the two countries.
Feb 28, 2026 President Trump announced and defended major combat operations against Iran without congressional authorization Tier 1 · Primary Power and Authority
The president used war powers unilaterally, shifting core decisions on force away from Congress and weakening democratic checks on military action.
Supporting reports
- Trump Announces Military Action Against Iran — On February 27, 2026, former President Donald Trump released a video on his social media platform, Truth Social, announcing a military operation against Iran.
- Trump announces military operations in Iran — Following the military strikes on Iran, President Trump posted an 8-minute video on social media announcing the commencement of major combat operations.
- Trump expresses desire for regime change in Iran — In a phone call with reporters, President Trump stated that his primary goal in the military action against Iran is regime change, emphasizing his desire for freedom for the Iranian people.
Jun 21, 2025 President Trump ordered U.S. airstrikes on Iranian nuclear facilities without congressional approval Corroborated Power and Authority
The strikes tested constitutional limits on war powers by concentrating military decision-making in the presidency and bypassing normal legislative authorization and advance notice.
Supporting reports
- President Trump Orders Airstrikes on Iranian Nuclear Facilities — On June 21, 2025, President Trump ordered airstrikes on three Iranian nuclear facilities—Fordow, Natanz, and Isfahan—marking the first U.S.
- U.S. Military Conducts Airstrikes on Iranian Nuclear Sites — On June 21, 2025, President Donald J.
- US military conducts airstrikes on Iranian nuclear sites — The US military launched airstrikes targeting Iranian nuclear facilities, involving over 125 aircraft and multiple bomb types, including GBU-57 bunker buster bombs and Tomahawk missiles.
Feb 1, 2025 President Trump imposed emergency tariffs on Canada, Mexico, and China Tier 1 · Primary Power and Authority
Using emergency powers for broad trade penalties expanded unilateral presidential control over economic policy and foreign relations.
Supporting reports
- Trump signs executive orders imposing tariffs on Canada, Mexico, and China — On February 1, 2025, President Donald Trump signed three executive orders imposing tariffs of 25% on all goods from Canada and Mexico, and a 10% tariff on Canadian oil exports and imports from China.
- Trump invokes emergency powers for tariffs — Trump invoked emergency powers to justify the imposition of tariffs, citing border security as a rationale.
- Executive Order Imposing Duties on Chinese Products — On February 1, 2025, President Donald Trump issued an executive order imposing a 10% ad valorem tariff on all products from the People's Republic of China.