Record diesel prices push rural Republicans into open break with Trump on exports

Record diesel prices are opening a rare public rift between President Trump and Republican lawmakers from farm and manufacturing states, five weeks before Election Day. On Sunday, Trump told a reporter at the Presidents Cup golf tournament outside Chicago that he is looking "very seriously" at banning U.S. diesel exports and "may do it," even though he acknowledged the move could push gasoline prices higher for ordinary drivers.

The remark was the clearest signal yet that the White House is seriously weighing a step that, days earlier, officials had told reporters was not on the table. It came after weeks of pressure from Republican senators and House members in Iowa, Michigan, Kansas and other states who say their constituents cannot absorb fuel costs that have risen far faster than the broader economy.

The numbers behind the pressure campaign

The U.S. Energy Information Administration's weekly fuel price survey put the national average for on-highway diesel at $6.529 a gallon for the week of September 21, a record in the series that dates to 1994, with regular gasoline averaging $4.478. AAA's daily tracker showed diesel at roughly $6.45 and gasoline at $4.48 as of Monday. Diesel has climbed about 73% since roughly $3.77 a gallon before the outbreak of the Iran war, according to figures cited by wire reports, with the steepest jump concentrated in the past two months.

The spike traces to two overlapping supply shocks: disruption to tanker traffic through the Strait of Hormuz, which normally carries roughly a fifth of the world's oil, and Ukrainian strikes on Russian refineries that have knocked out an estimated 800,000 to 1 million barrels a day of refined fuel production. The United States consumes about 4.1 million barrels of diesel a day domestically while still exporting roughly 1.5 to 2 million barrels daily, the gap that export-ban advocates want closed.

A rural GOP revolt, out in the open

Sen. Chuck Grassley of Iowa has been the loudest Republican voice pushing the administration, posting on social media that "High diesel prices ARE KILLING FARMERS INCOME" and asking why Trump doesn't "put an embargo on diesel exports like presidents in the 70s put embargoes on ag products." In a formal statement from his Senate office, Grassley renewed calls for a temporary diesel export embargo alongside a permanent, year-round E15 ethanol policy, arguing farmers are being squeezed just as harvest season begins.

He is far from alone. Other Iowa Republicans have piled on with their own fixes: Rep. Ashley Hinson, now running for Iowa's open Senate seat, has called for the House to return to Washington immediately to suspend the federal gas tax, pause diesel exports and revive a $1-a-gallon biodiesel tax credit. Rep. Mariannette Miller-Meeks wants the federal and state gas tax suspended and American diesel "sold to Americans first." Rep. Zach Nunn has pitched a plan to sell domestic energy at home first, promising it could cut gas prices by 50 cents a gallon. Rep. Mike Rogers, the GOP's Senate nominee in Michigan, has said the war "needs to end to bring costs down" for families who "can't afford to wait."

Senate Majority Leader John Thune has said he is "open to exploring" an export limit, and U.S. Trade Representative Jamieson Greer said his office would examine the idea now that "senior Republican leadership" has asked for it, according to reporting reviewed by the Washington Examiner. Treasury Secretary Scott Bessent and Agriculture Secretary Brooke Rollins have both said the administration is studying whether a full or partial ban is workable, with Rollins describing the review as looking at "every tool in the tool kit."

Not everyone in the administration is on board. Energy Secretary Chris Wright has argued a blanket export ban would not work and could raise gasoline and jet-fuel prices instead, pointing administration officials toward voluntary supply arrangements with refiners rather than a formal restriction, a split detailed in accounts of the internal debate. Oil industry groups have countered by pushing to suspend the federal diesel excise tax instead of restricting exports.

Who feels it first

Diesel is the fuel of farm equipment, freight trucks and rail, so the price spike lands hardest on grain farmers moving a harvest to market, independent truckers, and any business that depends on trucking to move goods. Economists warn that cutting off exports to lower the domestic price carries its own risks. Joseph Brusuelas, chief economist at the consulting firm RSM, said restricting exports "will result in Americans taking a one-two punch for food and fuel prices that just don't stop," since less U.S. diesel on the world market could tighten supply and raise costs elsewhere, feeding back into shipping and food prices at home. Energy economist Phil Verleger has compared the risk to the fallout from Richard Nixon's 1973 soybean export embargo, which pushed buyers toward Brazilian suppliers for years afterward.

Democrats see an opening

Democratic leaders have cast the export-ban debate as a Republican attempt to paper over the deeper cause of the price spike. Senate Minority Leader Chuck Schumer's office argued in a statement from Senate Democratic leadership that Trump's war policy, not export levels, is the root problem.

"The best way to get prices down, whether it is diesel or gasoline, is end the damn war," Schumer said, calling other proposed fixes "half-baked" and insufficient on their own.

Democratic candidates in contested races are making the same case on the trail. Adam Hamilton, challenging Republican Sen. Roger Marshall in Kansas, has relayed farmers telling him they don't know if they can keep their operations afloat. Elaine Luria, running for a House seat in Virginia, has described the fuel-price surge as part of "an expanding economic crisis" linked to the war, according to wire-service reporting on the political fallout.

What happens next

Trump has given no timeline beyond saying a decision would come "fast, one way or the other." Any export restriction would likely take the form of executive action rather than legislation, and administration officials have signaled a decision could still land on a partial measure, voluntary refiner commitments, or no ban at all. In the meantime, both AAA's daily average and the EIA's weekly survey are the numbers lawmakers in both parties are now watching most closely, with roughly five weeks left before voters render their own verdict at the polls.