Republican lawmakers are lining up to stop President Trump’s diesel supply deal with Vladimir Putin, and Sen. Thom Tillis says the arrangement may violate U.S. law.
President Donald Trump said Friday that Russia would immediately send more than 300,000 tons of diesel into the American and global marketplace, calling it the fuel the country needs as truckers, farmers, and consumers face crushing prices ahead of the November midterms.
Newsweek reported that the Treasury Department issued a temporary license allowing Russian-origin diesel to reach global markets, and that the move quickly drew sharp pushback from Republicans who back tough pressure on Moscow over the war in Ukraine.
National average diesel sat at $6.28 a gallon on Saturday, per AAA figures cited in the coverage. The White House cast the Russia arrangement, along with other steps, as emergency relief for the people who move food and freight. House Majority Whip Tom Emmer defended the approach on ABC’s This Week, saying Trump is trying to lower fuel costs while still working to end the war.
That dual track is now colliding with members of Trump’s own party who say buying Russian diesel is the wrong tool.
Rep. Brian Fitzpatrick of Pennsylvania, co-chair of the House Ukraine Caucus, announced bipartisan legislation to stop any and all purchases of Russian oil. He said the bill would be called the “Ronald Reagan Peace Through Strength Act,” and that he would seek a House vote through a discharge petition if needed.
"We will be introducing bipartisan legislation to block any and all purchases of Russian oil," "It will be called the 'Ronald Reagan Peace Through Strength Act.'"
Rep. Don Bacon of Nebraska agreed to serve as an original co-sponsor. Bacon represents farm and ranch country where diesel costs hit hard, and he still rejected the Russia path.
"We need lower diesel prices for American farmers, ranchers and consumers, but buying Russian fuel is the wrong answer,"
Bacon also pointed to the sanctions law Trump signed last month and to Congress’s approval, just weeks ago, of the Lindsey O. Graham Sanctioning Russia and Iran Act of 2026, the same push reflected when the House sent sweeping Russia-Iran sanctions toward the president’s desk.
Rep. Michael McCaul of Texas, former chairman of the House Foreign Affairs Committee, said he understood the drive to cut diesel prices but warned that lifting sanctions on Russian oil would “fund the Kremlin's war machine.”
Sen. Thom Tillis of North Carolina escalated the fight Sunday on NBC’s Meet the Press. Asked whether Trump was breaking the law, Tillis did not hedge.
“I believe that he may be,” “I do believe there’s a legitimate case for saying the president’s not following the law.”
Tillis argued the diesel arrangement runs “the exact opposite of the intent” of sanctions legislation. He pointed to a 2022 law that bans Russian oil imports until Moscow meets conditions that include withdrawing from Ukraine. Asked whether the deal endangered Americans, he answered, “It absolutely will,” and said of Putin: “This guy has a murderous rap sheet. He cannot be trusted.”
Tillis said he planned a joint statement with Democratic Sen. Jeanne Shaheen. Other Republicans broke ranks as well. Sen. Lisa Murkowski of Alaska said Trump should use existing authorities “instead of allowing Russia to export diesel, rake in revenues, and continue its catastrophic war in Ukraine.” Sen. Dan Sullivan’s office said high prices should be fixed through American energy dominance, not Russian imports. Former Rep. Mike Rogers, a Republican Senate candidate in Michigan, said of Putin, “you just don't want to give that guy an inch.”
Trump posted on Truth Social that Russia had agreed to supply the diesel at once and outlined further planned deliveries. Speaking later to reporters, he thanked Putin and stressed the product Americans need.
"That is massive amounts of oil coming into our country, and I want to thank President Putin to be honest with you," "And it's diesel, which is what we want."
The same week, Trump signed a separate executive order letting tax-exempt dyed diesel run on public roads through year-end while deferring the federal diesel tax tied to that fuel. The White House said it was also pushing allies to release emergency diesel reserves and weighing more executive steps.
Ukrainian President Volodymyr Zelensky pushed back Friday, saying that easing pressure on Russia without a broader de-escalation pact would amount to “an obvious weakness”, criticism that tracks with how Zelensky answered the Moscow diesel arrangement in related coverage.
Trump answered on Saturday that Zelensky “better d*** well stop” strikes on Russian refining targets and suggested Ukraine get a new leader who can make a deal. That pressure sits alongside his broader effort to end the killing, including when Trump cited tens of thousands dead each month while pressing both capitals toward an agreement.
Energy markets moved on the headline. Tom Kloza, senior energy and market adviser at Gulf Oil, told Newsweek the news brought a 7-to-8-cent-per-gallon drop, then added a caution.
"The market reacted with a 7-8cts/gal drop after the news broke, but nearly all traders I talk to doubt whether this will effect a trend change," "Diesel molecules are scarce and promise to be scarce through October, into November and perhaps beyond."
Kloza was skeptical Russia can deliver meaningful volumes after Ukrainian drone damage to refining capacity. Ed Hirs, an energy economist at the University of Houston, questioned the political timing: “If everything goes smoothly, the U.S. consumer will not get relief at the pump until well after the election.”
Those doubts do not erase the pain on the ground. High diesel hammers agriculture, trucking, and small business. Trump’s team is treating the spike as an emergency. The fight inside the GOP is over means, not the need for lower costs.
Diplomacy with Moscow remains active on other fronts as well, from prisoner cases such as when Russia freed Marine veteran Robert Gilman after Trump intervened, to shuttle diplomacy aimed at a wider settlement.
When asked about Republican criticism, a White House official pointed reporters back to Trump’s public comments rather than offering a separate legal defense. Fitzpatrick’s bill, Tillis’s law claims, and the temporary Treasury license now sit in the same frame: a president racing to ease fuel pain, and allies who say Russian barrels undercut the sanctions they just toughened.
Farmers and truckers need cheaper diesel. Lawmakers who just voted to squeeze Moscow will not quietly accept Russian fuel as the fix. That tension is now heading for a House vote fight, and it will test whether peace through strength still means starving the Kremlin’s war chest while America gets its energy house in order.
