Seven senators — a cross-party bloc of four Republicans and three Democrats — released a joint statement Sunday calling on President Donald Trump to end a diesel supply arrangement with Russia, contending that the deal runs counter to a 2022 law barring American purchases of Russian energy for as long as Russia maintains its military campaign against Ukraine, and pointing to the statute's stated intent to cut off U.S. money from what they characterised as funding Putin's war effort.
Critics also contended that the administration had bypassed any consultation with Congress and withheld the legally mandated explanation for its decision, while a quoted voice argued that extending financial support to Russia while its forces continued targeting Ukrainian civilians ran counter to American interests.
A formal document put forward a request for the administration to alter its policy course. The document originated with Republican senators. Among the Republicans were Susan Collins of Maine, Lisa Murkowski of Alaska, Thom Tillis of North Carolina, and John Curtis of Utah, while the Democratic side included Jeanne Shaheen of New Hampshire, Richard Blumenthal of Connecticut, and Ron Wyden of Oregon.
Speaking on Sunday, Tillis raised concerns that the fuel arrangement might contravene existing law and posed a threat to the safety of Americans.
On Friday, Trump disclosed that Russia had committed to supplying diesel to international markets, while his administration placed a short-term hold on sanctions directed at Russian fuel exports — levies that had been put in place to restrict the flow of money sustaining Moscow's military operations in Ukraine. In a separate development, Tillis, whose Senate tenure ends in January, told a prominent news outlet that he regarded a reasonable case as existing for the conclusion that the president had been acting beyond what the law permits.
Diesel, which powers farm equipment, freight transport, and residential heating systems, has climbed toward record-high territory on pricing charts, a development that analysts say carries electoral implications for Republican candidates in the upcoming congressional races. Analysts who track energy markets projected that the agreement reached between the United States and Russia would fall short of bringing any lasting relief to consumers at the fuel pump.
On Sunday, Treasury Secretary Scott Bessent stated that existing legal authority would underpin the administration's implementation of the deal, and that the arrangement would bring prices down for American consumers, adding that every available legal instrument would be deployed toward that end. Bessent maintained that any member of Congress asserting that either an older piece of legislation or the current Lindsey Graham bill blocks that course of action is mistaken.
Legislation bearing the name of the late South Carolina senator — formally titled the "Lindsey O. Graham Sanctioning Russia and Iran Act of 2026" in recognition of Graham's longstanding advocacy for pressure on Moscow — received a presidential signature the previous month.
Nebraska Representative Don Bacon, whose term was drawing to a close, posted on social media that Friday to contend that tolerating revenue flows into Russian oil amounted to a failure of moral responsibility, given that those funds underwrite strikes on civilian populations, while former Vice President Mike Pence characterized the administration's move to relax sanctions on Russian oil as a betrayal of Graham's legacy and called on the president to reverse that decision.
Wyoming Senator John Barrasso, who holds the second-ranking Republican post in the chamber, appeared on a television news programme to back the diesel agreement, conveying that the president views cost reduction as a priority and faces decisions that require difficult trade-offs.
In a Sunday phone call, Prime Minister Mark Carney conveyed to Ukrainian President Volodymyr Zelenskyy that the diesel agreement runs counter to the collective efforts of Ukraine, Canada, and allied nations toward peace and stability in Europe, according to a statement released by his office.
On Sunday, a social media post from Trump announced that Ukraine and Russia had reached what he characterised as an "energy ceasefire," set to take hold immediately, though no further details were offered. Zelenskyy indicated he had yet to receive the details of the agreement, while separately stating through Telegram that Ukraine backed a ceasefire and that Russian backing for it would be equally necessary. Moscow offered no public response to the announcement, which came after a period in which the United States had been pressing Ukraine to stop targeting oil refineries on Russian territory.
