NextFin News - President Donald Trump wants the United States to have the lowest interest rates in the world. The Federal Reserve he installed is preparing to give him the opposite. With consumer prices rising 3.4% over the past year and at least six of the 12 voting members of the Federal Open Market Committee signaling support for an increase, traders are pricing roughly a 70% probability that the central bank raises its benchmark rate to a range of 3.75% to 4.00% at its September 15-16 meeting. That would be the first rate increase since July 2023, and it would tighten financial conditions for households and businesses in the final weeks before the midterm elections that could decide control of Congress.
The decision lands squarely on Kevin Warsh, the former Wall Street banker and Trump nominee whom the Senate confirmed as Fed chair on May 13 — just four months ago, on a 51-45 vote that broke almost entirely along party lines. The question is no longer whether the Fed is under political pressure. It is whether the central bank's independence survives its own chairman's first real test.
The Setup: A President's Pick, an Inflation Problem
The Fed's benchmark overnight rate currently sits in a 3.50%-3.75% range, unchanged through 2026 after three cuts late last year. Inflation, by contrast, has not cooperated with the administration's political calendar. The Labor Department reported on September 11 that the Consumer Price Index climbed 0.4% in August, matching economists' forecasts but following a mere 0.1% gain in July; over the 12 months through August, prices advanced 3.4%, the same pace as July and far above the Fed's 2% target — a target inflation has now exceeded for five consecutive years.
The breadth of the price pressure is what alarms Fed officials. At the Jackson Hole symposium in late August, Warsh noted that 54% of the 199 components in the Personal Consumption Expenditures index — the Fed's preferred inflation gauge — had risen more than 3% over the previous 12 months. Core PCE, which strips out volatile food and energy, advanced 3.3% year-on-year in July, and economists' estimates for the August reading converged around a 0.28% monthly gain that would keep the annual pace near 3.2% to 3.3%.
Against that backdrop, the committee is dividing. At the July meeting, three regional Fed presidents — Beth Hammack of Cleveland, Neel Kashkari of Minneapolis, and Lorie Logan of Dallas — dissented in favor of a quarter-point hike. Fed Governors Christopher Waller and Lisa Cook separately warned that rates may need to rise if inflation does not return to target. By early September, at least six of the 12 voting members had publicly signaled potential support for a move.
The political counter-pressure has been anything but subtle. Speaking in the Oval Office on August 31, Trump said the U.S. economy could grow at a rate as high as 20% — a figure that bears no relation to reality, with real GDP expanding just 1.5% year over year in the second quarter — and added that even such a boom should not prompt a Fed rate hike. "We just announced great numbers, and so now they're talking about raising interest rates," Trump said. "It's ridiculous because success in growth does not cause inflation. Inflation's caused for other reasons." He has said he is "no fan of inflation" but insists the United States should have "the lowest interest rates in the world." On social media, he went further: "LOWER THE RATE OR I'LL STOP TRADING WITH COUNTRIES WITH WHICH WE HAVE A DEFICIT."
That threat, economists have warned, reads as political intimidation — and it may already be costing the administration in the bond market, where long-term yields have climbed partly on fears that political pressure will erode the Fed's credibility and force investors to demand a higher premium for holding U.S. debt.
The Irony: Trump's Man Is Becoming the Hawk
The central tension of this moment is almost theatrical. Trump nominated Jerome Powell as Fed chair in November 2017 during his first term, then spent years publicly attacking him. Now, having replaced Powell with Warsh — a former Fed governor and private-equity executive many assumed would be more pliable — the president faces the same institutional reality his predecessor could not escape.
Warsh, for his part, has been careful not to promise anything. In his Jackson Hole speech on August 28, he explicitly declined to offer the markets a "reaction function" — a pre-announced rule for how the Fed would respond to incoming data. Instead, he delivered the clearest signal yet of his inflation focus:
"While this summer's inflation readings were better than expected, they do not tell me that underlying trends have meaningfully improved."
He framed his approach as a return to a quieter, less predictable central bank: "We should not indulge a regime in which market participants are looking primarily to the Fed for their next trade."
The message was deliberate ambiguity, but the direction was not. Deutsche Bank analysts, reviewing the speech, called it unexpectedly hawkish and maintained their forecast for 50 basis points of rate increases in 2026 — one hike in September and another in December. After Warsh spoke, fed funds futures moved to price roughly a 60% chance of a September hike; following the August jobs report and the September 11 inflation print, that probability climbed to around 70%.
The administration's economic argument, meanwhile, challenges a pillar of mainstream macroeconomics. By insisting that growth does not cause inflation, the White House is rejecting the Phillips Curve logic that an economy expanding beyond its productive capacity generates price pressure through tight labor markets and rising wages. There is a version of that supply-side case that could be right over time — the flood of investment into artificial intelligence should eventually lift productivity and expand capacity. But the timing cuts the other way. Current data show that demand for the equipment needed to build out AI infrastructure is itself raising prices, and the labor market remains tight enough to keep wage growth above levels consistent with 2% inflation: average hourly earnings rose 0.3% in August and 3.1% from a year earlier, with unemployment at 4.1%.
Why This Inflation Is Different: A Structural Regime, Not a Cyclical Blip
The most important analytical question is whether the inflation now pressing on the Fed is cyclical — a temporary wave that will recede on its own — or structural, a regime shift that will not self-correct. The evidence points to structural, and that distinction is what makes a rate hike more likely than the White House wants to admit.
A cyclical inflation episode has a recognizable shape: demand runs hot, wages accelerate, then a slowdown in activity brings prices back down. That is not what the data show. Instead, three distinct and durable shocks have pushed the price level onto a higher path, and none of them is self-reversing.
First, energy. The conflict with Iran sent oil above $100 a barrel in early September, with diesel at record highs. Gasoline prices jumped 3.9% in August alone and were 27.4% higher than a year earlier, accounting for more than a third of the month's CPI increase. A war-driven energy shock does not mean-revert until the geopolitical risk clears — and the administration's own foreign policy has made that outcome uncertain.
Second, tariffs. Import taxes raise the domestic price of foreign goods directly, and they ripple through supply chains. Unlike a demand boom, a tariff is a permanent addition to the price level unless it is repealed — and there is no indication the administration intends to repeal them. Indeed, it has continued to expand them, most recently against Canada, one of America's largest trading partners.
Third, the AI buildout. The capital expenditure required to construct data centers and power grids is bidding up equipment, construction, and electricity costs — a demand shock concentrated in sectors with limited near-term supply elasticity. This is not a broad-based consumption boom; it is a sectoral squeeze that shows up in prices before it shows up in productivity.
The tell is in the breadth. When inflation is cyclical, it tends to concentrate in a handful of sensitive categories. When 54% of the 199 PCE components are rising faster than 3%, price pressure has generalized across the economy — the signature of a regime change, not a passing cycle. Fed Governor Michael Barr made the point plainly on September 1: the central bank had made "enormous progress" bringing inflation down from more than 7% in 2022 to a bit higher than 2% in 2024, "but that progress stalled last year." He cited "a series of shocks – from tariffs and then the conflict in the Middle East, as well as from the rapid AI buildout" that "pushed us off course," and set the bar clearly:
"If inflation appears not to be moderating sufficiently, then I think we should act decisively to raise rates."
This is the mechanism that traps the administration's argument. Trump insists that growth cannot cause inflation. But the Fed does not need growth to be the cause. When the price level has been permanently stepped up by tariffs, war, and an investment supercycle, the only tool that prevents those relative-price shocks from bleeding into persistent inflation is a restrictive policy stance — even, and especially, when the president says otherwise.
The Second-Order Trade: Independence Has a Price in the Bond Market
Here is the consequence most market participants have not fully priced. If the Fed raises rates in September to demonstrate its independence, the move may tighten financial conditions by far more than 25 basis points — because the bond market will read the hike as confirmation that inflation is structurally higher, not as a reassuring signal of central-bank control.
The transmission runs through the term premium, the extra yield investors demand for holding long-dated Treasury risk. Political pressure on the Fed functions as a kind of fear tax on that premium: the more the market believes monetary policy is being subordinated to electoral timing, the more compensation investors require for duration risk. A rate hike intended to prove the Fed's independence can paradoxically validate the fear — officials would be acting decisively precisely because the inflation problem is worse than the administration admits. Long-term yields could rise even as the Fed tightens, steepening the yield curve and raising borrowing costs for mortgages, corporate debt, and, critically, the Treasury's own deficit financing.
The asymmetry is stark. The beneficiaries of a hike are narrow and financial: money-market funds, banks with floating-rate assets, and savers finally earning positive real yields. The exposed are broad and political: homebuyers facing higher mortgage rates, small businesses rolling over credit, and an administration whose midterm message rests on affordability while the interest cost of the federal debt climbs.
This is why the decision is genuinely hard, and why a purely political reading of Warsh is too simple. A Fed chair who hikes against the president's wishes pays an immediate political price — and Warsh owes his job to that president. But a chair who fails to act against 3.4% inflation pays a market price that compounds: once credibility is lost, it must be bought back at a much higher interest rate. Warsh's Jackson Hole framing — no reaction function, no forward guidance — is the institutional escape hatch that lets him claim he is following data rather than either the president or the market.
The Counter-Thesis: The Case for Holding
The strongest argument against a September hike is not political; it is in the data. Core CPI, which excludes food and energy, actually cooled to 2.4% year-on-year in August from 2.5% in July. The administration's supply-side logic is not entirely wrong: if the AI investment wave lifts productivity over the next few years, today's price pressure could prove transitory, and tightening now would risk choking off a recovery that is already modest — GDP grew just 1.5% year over year in the second quarter.
More pointedly, the hike is already largely priced in. Markets moved to roughly 70% odds well before the August CPI print. That creates a perverse incentive: if Warsh wants to reassert the Fed's independence from market expectations — the very "regime" he said he would not indulge at Jackson Hole — the more independent act might be to hold, catching traders off guard and proving that the committee answers to data, not to futures contracts.
But this counter-thesis underestimates the credibility cost of a hold. Warsh has already signaled publicly that the Fed has "work to do" if policymakers do not gain confidence that inflation is heading to 2%. Three of his colleagues dissented for a hike in July. Inflation has been above target for five years. To hold now, after the August CPI and producer-price prints and a strong jobs report, would read less like data-dependent independence and more like capitulation to the president who appointed him — especially with Trump's public threats still echoing. The market has priced a hike; disappointing that expectation would not prove independence, it would confirm the suspicion that politics won.
The falsifying signal is specific: if core PCE prints below 0.2% month-on-month for two consecutive months, the structural-inflation thesis is wrong, and the case for hiking evaporates. Nothing in the current data — 3.4% headline CPI, 2.4% core CPI, 3.3% core PCE, oil above $100 — points in that direction.
What to Watch: Scenarios for September and Beyond
The base case is a 25-basis-point increase to a 3.75%-4.00% range at the September 15-16 meeting, followed by a second hike in December — the 50-basis-point path Deutsche Bank and other analysts have outlined. That path prices in a Fed that is willing to absorb political heat to protect its inflation mandate.
The upside case for markets — no hike — requires core PCE to cool meaningfully in the August and September releases, giving Warsh cover to hold while claiming data dependence. The downside case is a 50-basis-point September move, which would become live if monthly core inflation re-accelerates toward 0.4% or if oil pushes decisively higher on renewed Middle East escalation.
For investors and policymakers, the watch list is short: the August core PCE release; the September 15-16 FOMC decision and Warsh's press conference; the November midterm results, which will determine whether the political pressure intensifies or fades; and the term premium on the 10-year Treasury, which will reveal whether the bond market believes the Fed is truly independent or merely performing independence.
The Federal Reserve was designed to be insulated from exactly this kind of pressure. In September, its chairman — chosen by the president now demanding lower rates — will show whether that design still works.
The bottom line: the Fed is likely to raise rates in September not because it wants to defy Donald Trump, but because the inflation regime has changed beneath it — and a central bank that fails to act on structural inflation does not just lose an election cycle, it loses its credibility for the next one.
Explore more exclusive insights at nextfin.ai.
