Consumer prices rose at their fastest pace in more than three years in May, as the ongoing conflict in Iran continued to push gasoline and energy costs higher, according to data released Tuesday by the Bureau of Labor Statistics.
The Consumer Price Index increased 4.2% year-over-year, the highest reading since April 2023, with energy prices accounting for more than 60% of the monthly increase. Gasoline prices alone soared 40.5% after climbing 28.4% the previous month.
For Americans filling up their tanks, the pain is immediate and measurable. A typical fill-up that cost $45 a year ago now runs $85 in many parts of the country—a squeeze that hits working families, small businesses, and anyone who commutes to work.
"Gas is doing all the heavy lifting here," explained one economist tracking the data. "Core inflation excluding energy is still around 2.8%, which is manageable. The Iran situation is the wildcard nobody can predict."
The Producer Price Index also surged, rising 1.1% month-over-month and 6.5% year-over-year, signaling that higher costs for businesses may continue filtering through to consumers in the months ahead.
Analysts at Bank of America suggest that most tariff-driven inflation has run its course following the Supreme Court's decision striking down the administration's primary tariff authority earlier this year. But the bank warned that supply chain pressures from the Iran conflict are building, particularly in energy-intensive industries.
The inflation spike puts the Federal Reserve in a difficult position. The central bank cannot cut interest rates into 4% inflation without risking further price acceleration, yet raising rates risks triggering a recession. Some economists are beginning to invoke the word that defined the 1970s: stagflation—the toxic combination of high inflation and slow economic growth.
The Iran conflict, which escalated in March after a U.S. strike on Iranian nuclear facilities, has disrupted oil shipping through the Strait of Hormuz, a critical chokepoint through which roughly 20% of the world's oil supply passes. While domestic production has increased in states like Texas and North Dakota, it hasn't been enough to offset global supply disruptions.
Swing state voters are particularly sensitive to gas prices, which political analysts see as one of the most visible economic indicators. In Pennsylvania, Michigan, and Wisconsin—states that will likely decide the 2028 presidential race—commuters and small business owners are feeling the pinch most acutely.
Congress has shown little appetite for new economic interventions, with Democrats and Republicans divided over whether to tap the Strategic Petroleum Reserve again or approve new domestic drilling permits. The White House has so far avoided commenting on the data, though economic advisers are expected to brief the President this week.
As Americans like to say, 'all politics is local'—even in the nation's capital. And right now, the politics of inflation start at the gas pump.
