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Trump tariffs and Iran war pressure Fed toward first rate hike since 2023

Higher oil prices, new tariffs on Canada and ongoing Iran conflict have shifted market expectations to multiple Fed hikes, putting new chair Kevin Warsh’s credibility on the line.

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Elena Kovač · Central Banks Desk · 19 Sept 2026 · 11:23 · 2 min read
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Trump tariffs and Iran war pressure Fed toward first rate hike since 2023

U.S. markets expect the Federal Reserve to raise its policy rate this week, marking the first increase since 2023. Futures pricing now reflects at least three hikes through March 2025, a sharp reversal from the March outlook that still projected a rate cut this year and another next year.

The shift is linked to President Donald Trump’s economic agenda. New tariffs on Canada and the prospect of additional duties on the United States’ second‑largest trading partner add to price pressures, while the ongoing war in Iran has kept crude oil near $100 a barrel. Diesel prices have risen to $6 a gallon, feeding higher food and transportation costs.

Fed officials say the combination of tariffs and the Iran conflict makes it difficult to treat recent price spikes as one‑off supply shocks. Minneapolis Fed President Neel Kashkari, in a recent dissent, warned that successive supply shocks can become entrenched, recalling the 1970s experience when tight monetary policy was required to bring inflation down.

Kevin Warsh, the Fed’s new chairman and a Trump appointee, signaled in his Jackson Hole speech that the central bank would act if it lacked confidence that underlying inflation was declining. Warsh’s credibility is now tied to the decision; his earlier congressional testimony emphasized independence from presidential pressure, yet the president has publicly called for rate cuts.

Analysts note that the Fed’s mandate is to assess the impact of fiscal and trade policies on the economy, not to judge the policies themselves. With inflation still above the Fed’s 2% target and no clear path for lower oil prices or stable tariff regimes, the central bank faces a test of credibility. A rate hike would demonstrate willingness to risk a slowdown to curb inflation, regardless of political pressure.

If the Fed moves on Wednesday, it will set a new benchmark for monetary policy under a Trump administration that has repeatedly challenged the central bank’s independence. The market’s pricing of multiple hikes suggests policymakers anticipate a sustained tightening cycle to anchor inflation expectations.

This article was produced with AI assistance and edited by a Finance Review Daily journalist.
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Written by
Elena Kovač
Central Banks Desk

Elena covers macroeconomic data and policy across the eurozone, translating industrial output, inflation and growth figures into what they mean for markets.

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