Democratic lawmakers are seeking to overturn a nuclear cooperation agreement between the United States and Saudi Arabia during a three-month congressional review. Reps. Gregory Meeks, the top Democrat on the House Foreign Affairs Committee, Brad Sherman, John Garamendi and Don Beyer introduced a Joint Resolution of Disapproval on Wednesday, shortly before lawmakers left Washington ahead of midterm elections. A vote could take place in November. Unless the resolution secures a two-thirds majority, President Donald Trump could veto it, allowing the agreement to take effect as written. Known as a 123 agreement (a U.S. framework for civilian nuclear cooperation), the pact would enable American companies to participate in tens of billions of dollars of nuclear-energy projects in Saudi Arabia. The administration has described it as evidence of closer U.S.-Saudi ties, while also saying the deal remains contingent on Saudi Arabia joining the Abraham Accords. Critics argue that the agreement creates proliferation risks because it departs from the nuclear sector's so-called gold standard, which provides international inspectors broad access to declared and undeclared sites. The pact instead limits International Atomic Energy Agency inspections to declared nuclear facilities. Its publicly released text also calls for a joint U.S.-Saudi study on the feasibility of building a uranium-enrichment facility in Saudi Arabia, with an additional study potentially enabling enrichment to 20%. Kelsey Davenport, director for nonproliferation policy at the Arms Control Association, said the enrichment study was described vaguely. She said 20% enrichment poses a more significant risk because it represents most of the work required to reach weapons-grade enrichment at 90%, and noted that the United States had repeatedly and rightly raised concerns about Iran's previous enrichment to 20%. Saudi Arabian Crown Prince Mohamed bin Salman has previously said Saudi Arabia would seek a nuclear weapon if Iran acquired one. The Trump administration acknowledged his concerning public statements in its Aug. 27 communication to Congress. Secretary of State Marco Rubio said in July that Saudi Arabia could have turned to China or Russia if Washington had not agreed to cooperate, arguing that the United States must adapt deals to a competitive environment. Lawmakers from both parties are also demanding the release of two classified side letters that the White House said formed part of the agreement. They said they were aware of no precedent for withholding the documents when the stated purpose was peaceful nuclear cooperation. A measure overturning the agreement would require a supermajority in the Republican-controlled Congress and is considered exceedingly unlikely, though lawmakers could seek legislation imposing conditions on the pact.