Trump Built the Inflation He Keeps Trying to Talk Down

On September 2, the president authorized strikes on Iranian targets including Bandar Abbas and Qeshm Island ^[1]. Within hours, on the morning of September 3, he was telling reporters the campaign would be short-lived.

I don’t think too long. — Donald Trump

Oil dropped more than 1%, and the tell is what didn't move it: U.S. commercial crude stocks fell 4.5 million barrels, far past the 300,000-barrel forecast, and prices still fell ^[2]. The move came from the words, not the supply. This is not the first time. In February, a full sentence about a negotiated deal dropped oil 3 to 5% ^[3]. In April, after he ordered a blockade of Iranian ports and banned Iranian oil shipments, a clipped phrase — that the other side wanted a deal very badly — pulled Brent from $100 to below $95 ^[4]. In July, a claim that a deal was near helped rally Treasuries even as Iranian officials said Tehran had not sought talks in over two weeks ^[5]. The rhetoric keeps compressing — a full sentence in February, a clipped phrase by April, three fragments in one morning by September — while the market keeps moving on it. By August, the pattern was explicit enough that a market story named it: major indexes rally on presidential hints of peace despite denials from the Iranian foreign ministry ^[6]. The war itself is real — Iran's July strikes killed American service members ^[7]. But the words about the war move markets on their own, and they move oil. Oil is the second layer of an inflation the president built himself. Fed Chair Jerome Powell put the first layer in plain terms ^[8].

there's an expectation that sometime in the middle quarters of the year we'll see tariff inflation topping out. — Jerome Powell

The Fed's own analysis found the tariffs raised core goods prices 3.1% through February, before the war's energy shock landed on top — energy up 10.9% in March, gasoline up 21.2% ^[9]. The two streams compound the same household budget: higher sticker prices from tariffs, higher fuel prices from the war ^[10]. Here is the part the de-escalation can't fix. The San Francisco Fed found that gasoline price increases leave a more persistent imprint than decreases repair: a 10% rise in expected gas prices lifts one-year inflation expectations by 0.24%, but a fall doesn't pull them back down by the same amount ^[11]. The dial the president keeps turning works better in one direction than the other. Each escalation pushes oil up, each de-escalation pulls it partway back, and the part that doesn't come back is the part that keeps the Fed from cutting.