U.S. Public Opposes Trump’s Iran War and Tariffs: Can Congress Shift Oil Prices and Inflation?

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U.S. Opposition to Iran War and Tariffs: Impact on Oil and Inflation
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  • A survey found 71% back legislation ending the Iran war, including 51% of Republicans.
  • The poll found 62% back tariff repeal, while 90% want Congress to prioritize affordability.
  • Brent fell to $90.18 and WTI to $84.74 after Trump signaled no fresh Iran strikes.

Public opposition to Donald Trump’s Iran war and tariffs has put U.S. living costs at the center of Washington’s next political fight. A Reuters/Ipsos survey conducted November 6–9 found that 71% support legislation to end the Iran conflict. As Democrats prepare to control Congress, the findings raise a practical question: how much leverage can lawmakers exercise over policies affecting oil prices and investors?

Poll Finds 71% Back Ending Iran War as Congress Faces Tariffs

The survey of 1,705 adults found 93% of Democrats and 51% of Republicans favor legislation ending the conflict. Another 62% supported repealing Donald Trump’s import tariffs, while 90% wanted Congress to prioritize affordability. However, Donald Trump’s approval rating stood at 32%.

The figures place U.S. household expenses alongside dissatisfaction over war and trade. Yet public support alone cannot overturn White House decisions, even after Congress changes hands on January 3, 2027. Notably, support for prioritizing affordability exceeded backing for ending the war or repealing tariffs.

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Congress Gains Oversight Power but Faces Trump’s Veto

Following November’s midterm elections, Democrats will control both chambers of Congress from January 2027. That gives lawmakers power to investigate Donald Trump’s administration, advance war-power measures, and negotiate over federal spending.

However, Donald Trump can veto legislation ending the war or rolling back tariffs. Congress would need two-thirds majorities in both chambers to override him. Without those votes, its immediate leverage rests largely in negotiations and oversight rather than guaranteed policy changes. The U.S. political shift therefore leaves the timetable for either reversal unresolved.

Oil Prices Fall as Iran Risks and Tariffs Shape Market Outlook

Meanwhile, oil markets have already reacted to developments surrounding the Iran conflict. Brent fell to $90.18, while U.S. WTI dropped to $84.74 by 09:30 GMT on November 10. The declines followed Donald Trump’s indication that he would avoid fresh strikes against Iran.

Despite the retreat in prices, the U.S. naval blockade remains in place, while shipping threats persist around the Strait of Hormuz. At the same time, Congress faces pressure over tariffs that affect import prices and domestic production costs. Both issues carry implications for inflation, Federal Reserve interest rate expectations, and the U.S. dollar.

Against this backdrop, the S&P 500 gained 2.3% on Monday as oil prices declined and technology stocks advanced. Although Congress cannot directly determine market prices, its response to Donald Trump’s policies could influence the risks investors face.

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Related: If Hormuz Reopens, Which Moves First: Oil, Stocks, Gold, or Bitcoin?

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