Diesel prices have hit a record high, adding to the economic challenges facing Republicans just 45 days before the midterm elections. The national average for a gallon of diesel jumped 42 cents in the past week, reaching $6.27 on Tuesday, according to industry data. The surge is largely attributed to the ongoing U.S. military campaign in Iran, though President Trump has sought to shift blame to energy infrastructure damaged in the Russia-Ukraine conflict.
The spike comes as the winter heating season approaches, raising concerns about heating oil costs, particularly in the Northeast. Heating oil prices are expected to follow diesel's upward trajectory, putting additional strain on household budgets.
While gasoline prices have also risen, diesel's impact is more acute for rural communities and key GOP constituencies, including farmers and truckers. Diesel is the lifeblood of the agricultural sector and the trucking industry, which transports goods across the country. Higher diesel costs translate into higher prices for everything from groceries to construction materials, feeding into the broader inflation narrative that has dogged the administration.
President Trump, campaigning in battleground North Carolina, downplayed the pain, calling higher gas prices a “very inexpensive price to pay” for the Iran war. He promised that prices would soon “come tumbling down,” describing the decline as “rocket ships in reverse.” However, analysts are skeptical.
“I think prices remain above six [dollars], and seven is not out of the realm of possibility,” said Tom Kloza, chief oil analyst at Gulf Oil. “I think gasoline remains above four.” Kloza warned that a hurricane in the Gulf of Mexico could exacerbate the situation, making diesel and heating oil even more expensive. He noted that the administration has not yet used tools like export curbs or a windfall profits tax to cool the market.
Senate Majority Leader John Thune (R-N.D.) said this week he is “open to exploring” an export ban on diesel if it would relieve price pressure. But Interior Secretary Doug Burgum, speaking at the G20 summit in Houston, dismissed the idea, saying an export ban would not lower prices. “We would consider an export ban if we thought that actually might lower prices, but that’s not the case,” Burgum said.
The rising diesel prices are the latest in a series of negative economic headlines for Republicans. On Wednesday, the Federal Reserve raised interest rates by a quarter point, a move widely seen as a recognition that inflation remains stubbornly high, despite Trump's calls for rate cuts. A New York Times/Siena College poll released this week found that only 29% of Republicans believe the economy is better than a year ago, down sharply from 72% in January.
Democrats are seizing on the issue. In Michigan, Democratic Senate nominee Abdul El-Sayed slammed Republican opponent Mike Rogers, noting that Michigan drivers are paying $5 a gallon for gas and $6.79 for diesel. “While Michiganders suffer from the massive price hikes brought on by Donald Trump’s illegal war in Iran, Mike Rogers was cashing in with his big oil backers at Trumpapalooza in Dallas,” El-Sayed said. Rogers responded by calling for a suspension of state and federal gas taxes, criticizing Lansing Democrats for raising Michigan's gas tax from 31 cents to 51 cents per gallon.
Republicans are encouraging candidates to talk about the One Big Beautiful Bill Act, also known as the Working Families Tax Cut, and efforts to lower prescription drug prices. Vice President Vance, in a closed-door meeting with House Republicans, urged them to “level” with voters about affordability. “You can talk about these things without pretending that everything is perfect, because the American people know that you guys inherited — we inherited — a massive pile of dog crap, and we have cleaned it out and we’ve made things a lot better,” Vance said.
Despite the grim outlook, some GOP operatives believe voters will look beyond diesel prices. “I don’t think voters at the end of the day are going to make a decision on diesel. I think it’s part of the larger narrative,” said one Republican strategist. Another operative added that Trump's base understands the national security rationale for the Iran war, even if it means higher fuel costs. “I think the president understands that there is pain at the pump for the American people,” the operative said. “But I also think a large share of our voters understand why he’s doing what he’s doing in Iran. National security is a key part of his platform and the Republican agenda.”
