The Federal Reserve is on the verge of its first rate hike since 2023, with futures markets anticipating at least three increases through March of next year. Two main aspects of President Trump's policies are forcing the Fed's hand: the policies themselves and the unpredictability of their trajectory. Tariffs and the Iran war have significantly altered the inflation outlook, and the continued nature of the Iran war, along with the temporary shutdown of the Saudi East-West pipeline, suggests oil prices will not fall quickly. Tariffs, such as those levied on Canada, while individually small, contribute to existing price pressures and highlight the ongoing uncertainty in trade policy. These conditions have led analysts to expect further rate hikes, with most Fed officials anticipating at least one more hike by year-end based on anonymized projections.

Inflation, which had been cooling when Trump took office, began to rise around April 2025. The combination of tariffs and the Iran war caused prices to surge across various goods, from steel and oil to fertilizer and tomatoes. This has also led the public to expect higher prices, potentially creating a self-fulfilling prophecy; consumers now anticipate prices to rise by 4.6% over the next year, compared to the high 2s six months before Trump's presidency. These inflationary pressures leave the Fed with little choice but to raise rates to demonstrate its commitment to controlling inflation.

President Trump's public calls for rate cuts and his selection of a Fed chairman, Kevin Warsh, whom he suggested was amenable to his views, have subtly undermined the Fed's independence. Warsh's first congressional testimony indicated his independence by noting his failure to cut rates as the president desired. Wall Street reacted negatively to the recent rate hike of 25 basis points to a range of 3.75%-4.00% on September 16, with major indices declining. The Trump-led Iran war, which began on February 28, is considered a primary source of elevated inflation, as it halted a fifth of the world's crude oil supply by shutting down the Strait of Hormuz, causing fuel prices to soar. Additionally, long-duration Treasury bond yields have reached 19-year highs, indicating bond traders' demand for better compensation amid high inflation and U.S. total debt surpassing $40 trillion in mid-August.