Senators voted 57-42 to end debate on the measure, as 11 of Trump's fellow Republicans broke from party leaders to join Democrats in favor of the resolution, amid questions about Trump's relationship with Russian President Vladimir Putin. To keep the administration from lifting the sanctions, the measure must pass both the House and Senate and muster the two-thirds majority needed in both chambers to override an expected Trump veto. Many members of Congress have been questioning the U.S. Treasury Department's decision in December to ease sanctions imposed in April on the core businesses of Deripaska - Rusal, its parent, En+ , and power firm EuroSibEnergo - watering down the toughest penalties imposed on Russian entities since Moscow's 2014 annexation of Crimea from Ukraine.