President Donald Trump has publicly criticized Federal Reserve Chair Kevin Warsh for the first time, marking a significant escalation in the conflict between the White House and the central bank. In a recent interview with Time, Trump expressed displeasure with Warsh's vote to raise interest rates on Sept. 16, despite previously defending the Fed chair against other committee members.
The friction stems from the Federal Open Market Committee's decision to hike the federal funds target rate by 25 basis points, initiating the fourth rate-hiking cycle of the 21st century. While Trump has long demanded that rates be slashed to 1%, the Fed moved in the opposite direction to combat persistently elevated inflation. Trump labeled the Federal Reserve Board "very hostile" and "very political," asserting that Warsh lacks the support of his peers to lower rates effectively.
The central bank's actions are driven by inflation that has exceeded the FOMC's 2% target for 67 consecutive months, peaking at 4.2% in May. Two primary factors attributed to presidential policy have fueled this surge: tariffs and the Iran war. A report by New York Federal Reserve economists for Liberty Street Economics estimates that Trump's tariffs added 2.9 percentage points to goods price inflation by February 2026. The study indicates that about a quarter of every point in higher tariff rates appears in consumer prices within one year, with two-thirds of the increase coming from pricier imports and one-third from U.S.-made goods facing higher input costs.
Simultaneously, the Iran war has caused the largest energy supply disruption in modern history. The closure of the Strait of Hormuz has halted a fifth of the world's liquid petroleum flow, driving gas and diesel prices higher. Even if the conflict ended immediately, it would take more than a month to restore regional production capacity and longer to rebuild storage, with effects likely persisting for several quarters.
These inflationary pressures, combined with the AI infrastructure build-out, have prompted the Fed to act. According to the CME Group's FedWatch Tool, there is a 64% probability that Warsh and the FOMC will raise rates by at least 75 basis points by September 2027. This trajectory creates a potential public feud between Trump and a sitting Fed chair, risking damage to the central bank's credibility. For Wall Street, which is priced for perfection, further rate hikes driven by these factors could disrupt the AI data center build-out and push major indices off their recent highs.