A bipartisan group of 12 U.S. senators is urging President Donald Trump to rescind a recently announced arrangement with Russia that would allow Russian diesel to enter global markets and include U.S. purchases. The lawmakers say the deal grants Russia financial benefits while undermining U.S. and allied security interests, and several describe it as a betrayal of Ukraine.

According to the accounts, the senators—six Republicans and six Democrats—sent a joint letter calling on Trump to reverse the agreement reached with Russian President Vladimir Putin. They argue the move conflicts with recent U.S. sanctions legislation, including the “Lindsey O. Graham Sanctioning Russia and Iran Act of 2026,” which they say Trump signed shortly before the diesel arrangement.

Outlets also note the proposed structure of the waiver: Russian diesel sales are set to be permitted for a period extending into 2027, in exchange for a specified quantity of diesel reaching U.S. and international markets. The common thrust across sources is the lawmakers’ demand that Trump instead enforce the sanctions and undo the diesel deal.