Diesel Prices Shoot Upward as Top Farm-State GOP Senator Begs Trump for Export Embargo

WASHINGTON — Diesel prices hit a record average of $6.51 a gallon Monday, and some in President Donald Trump’s own party are breaking their support for the ongoing war in Iran that has driven fuel prices to staggering levels in the United States and across the globe.

Sen. Chuck Grassley, R-Iowa, is urging President Donald Trump to embargo diesel fuel exports as rising costs impact farmers in his largely agricultural state. Grassley is shown at a Senate Judiciary Committee meeting on July 23, 2026. (Screenshot from committee webcast)

Already, House Republicans locked in tight races as the November midterms approach have distanced themselves from the president’s conflict and his administration’s stagnant negotiations with Iran over reopening the Strait of Hormuz, a vital passage for global petroleum products. Another major vote on Iran support is expected later this week in the U.S. Senate.

The cost of diesel, which fuels the movement of goods through the United States, is up nearly $1 since last month, and up from just over $3.69 a year ago, according to AAA.

The national average cost for a gallon of gasoline landed at just over $4.47 Monday, up more than a dollar from last year’s average at $3.18, according to the motor club’s daily monitor.

Trump has an opportunity this week to potentially meet with Iranian officials, as leaders head to the United Nations General Assembly in New York City. Trump told Fox News on Sunday he is “open” to meeting with Iran’s President Masoud Pezeshkian.

Trump said he is in “deciding mode” about next steps in Iran, and that “big things” will happen in the “not so distant future,” he told the network’s Trey Yingst.

Grassley wants diesel embargo

Longtime Iowa Republican Sen. Chuck Grassley urged Trump throughout the weekend to embargo diesel fuel exports as costs impact farmers in his largely agricultural state.

“W(ith) diesel $6.57 in Iowa why doesn’t Pres Trump put an embargo on diesel exports like presidents in the 70s put embargoes on (agricultural) products bc food prices were inflated. High diesel prices ARE KILLING FARMERS’ INCOME,” Grassley wrote Saturday on X, followed by two more posts on Sunday urging the president to put “AMERICA FIRST.”

The administration does not have plans at this time to ban or restrict diesel exports, according to a White House official Monday.

Seven House Republicans broke ranks last week and voted in support of stopping Trump’s war with Iran unless Congress approved further action.

The Republicans included two vulnerable Iowa representatives, Reps. Zach Nunn and Mariannette Miller-Meeks, who are facing tough reelection bids in the fast-approaching midterm elections.

Democratic senators are expected to move on a War Powers Resolution vote this week.

Sen. Tim Kaine, D-Va., said Wednesday he will force the vote to continue applying pressure on Trump to stop the military campaign that has not been authorized by Congress.

“We’re gonna force a vote to end this illegal war every week until we succeed,” Kaine said in a video posted to X.

Two Republicans who will not serve in Congress next year, largely due to Trump’s public opposition to them, have also spoken out against the Pentagon leadership.

House Republican Rep. Thomas Massie, R-Ky., who has consistently supported War Powers Resolutions on Iran, unexpectedly introduced articles of impeachment last week against Secretary of Defense Pete Hegseth, citing his leadership during the Iran conflict.

Republican Sen. Thom Tillis of North Carolina told reporters on Capitol Hill Thursday that Hegseth “needs to go.” Tillis has voted no on multiple War Powers Resolutions aimed at ending hostilities in Iran.

Energy commodities up 16.3%

Inflation continued a steady march upwards in August, with fuel leading the way, according to the government’s latest consumer price index.

The cost of all types of gasoline and fuel oil rose 3.9% from July to August. All energy commodities and services, like electricity, shot up 16.3% over the past 12 months, according to the Bureau of Labor Statistics.

Trump and his administration officials have downplayed the squeeze on Americans at the pump, and Trump has promised fuel prices will drop “quickly” once the conflict ends.

On Monday, he shifted the blame for skyrocketing diesel prices onto Russia’s war in Ukraine.

“Russia has unfortunately lost control of its Diesel Oil Industry due to its War with Ukraine. A large number of their Diesel refineries have been blown up and are, at least temporarily, out of commission. This ridiculous and never-ending war with Ukraine must be ended,” he wrote on his platform Truth Social.

Vice President JD Vance told reporters Monday that the administration “is doing everything we can” to reduce energy prices, and suggested that states should suspend gas taxes.

“We’re very cognizant of the fact that because the Iranians are terrorizing international shipping, energy prices are elevated,” he said.

Meanwhile, the conflict has expanded in the Middle East as Iran -backed Houthi rebels in Yemen fight for control of the Bab al-Mandab Strait, a key route for Saudi Arabian oil exports.

The State Department issued a safety alert Saturday to U.S. citizens in the Middle East, warning “the security environment remains complex with the potential for unforeseen escalation.”

“Americans currently in the Middle East should exercise heightened vigilance and be aware of potential flight cancellations, airspace closures, and travel disruptions,” according to the warning, which instructs American travelers to make sure cell phones are charged at all times and to “keep a low profile.”

by Ashley Murray, Virginia Mercury

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