The Federal Reserve rate hike announced on Wednesday marks the first increase in US borrowing costs since 2023, with chair Kevin Warsh joining a unanimous decision to lift the central rate by 25 basis points, or a quarter of a percentage point, over the explicit objections of President Donald Trump. Warsh warned that ‘inflation is too high and has been for too long’, framing the move as urgent rather than precautionary.

Trump responded almost immediately on social media, demanding that interest rates fall to one per cent or lower. ‘We are “carrying” almost every country in the World, and that cannot go on any longer,’ he wrote. ‘LOWER THE INTEREST RATES FOR THE UNITED STATES OF AMERICA, AND FAST!’ The outburst continues a years-long campaign by Trump against the central bank, which he has repeatedly argued has been too restrictive even as inflation has remained above target.

What changed since July, in Warsh’s own words

According to Yahoo Finance, Warsh told reporters that three things had shifted since the Fed’s July meeting: the economy had strengthened, inflation trends had not improved enough, and geopolitical risks had shifted. Those three factors together, in his telling, tipped the balance in favour of action after a prolonged period on hold.

The BBC reports that the Fed had held US interest rates in a range of 3.5% to 3.75% throughout Warsh’s tenure since he was sworn in as chair in May. Wednesday’s decision moves the top of that range up by a quarter point, ending months of stasis that had itself generated considerable political noise from the White House.

Warsh described the move as ‘removing a dose of accommodation’ rather than adopting a restrictive stance, language that may have been calibrated to soften the political blow. It did not work. Trump’s social-media post followed within hours of the announcement.

Federal Reserve rate hike signals more tightening may follow

The Fed’s updated dot plot, a tool through which members of the Federal Open Market Committee (FOMC) indicate where they expect rates to head, showed officials anticipating a further 25-basis-point rise at one of the next two meetings. The FOMC is a 12-member group of rate-setters whose individual projections are aggregated into that forward guidance.

Yahoo Finance reports that the Fed’s updated projections put the median federal funds rate at 4.1% at the end of 2026, implying at least one more quarter-point increase from Wednesday’s level. That projection gives concrete shape to what the dot plot had only sketched out in directional terms.

Garry White, chief investment commentator at Raymond James, said the dot plot guidance carried its own message about the Fed’s independence. ‘By signalling through its updated dot plot that further tightening may still be required this year to bring inflation back to target, the Fed has demonstrated that policy decisions remain driven by economic conditions rather than political pressure,’ White said.

He added that Warsh’s framing of the move as removing accommodation ‘is likely to frustrate President Trump, who has repeatedly argued that borrowing costs should be lower and has publicly urged the Fed to ease policy.’

Inflation and the Iran factor

August inflation in the US held flat at 3.4%, well above the Fed’s two per cent target. Analysts had broadly expected a rate move after higher energy and fuel costs, linked to what the report describes as Trump’s war in Iran, began pushing into the broader price level. Prices at the pump jumped 27%, compounding the pressure on an inflation figure that has persistently refused to fall back to target.

There had been genuine uncertainty over whether Warsh, who was handpicked by Trump earlier this year, would follow through on his repeated pledges to prioritise price control at the risk of a very public rebuke from his nominator. Wednesday’s unanimous decision suggests those doubts have, for now, been settled. The more pressing question is whether the FOMC holds that consensus when the next rate decision arrives.

Rhiannon Gethin spent a decade in public health before she picked up a byline. She trained in epidemiology at a Russell Group university, worked in health policy at a regional NHS trust, and did a stint at a public health consultancy advising local authorities on service commissioning. She left the policy side because she got tired of writing reports that sat in inboxes. She covers NHS funding, social care, preventative health, and the gap between what the evidence says and what actually gets implemented. She has read more NICE guidelines than any reasonable person should and retains an unhealthy interest in health inequalities data. Rhiannon lives in Cardiff and works remotely. She does not believe in superfoods, and treats most wellness content as advertising with a pulse oximeter attached.