Repeal part of US health care law: senate MORE than half the Democrats in the US senate have voted to repeal part of President Barack Obama's health care law. The senate voted 79-20 to repeal a 2.3 per cent sales tax on medical devices such as catheters, pacemakers and MRI machines. Thirty-three Democrats joined all 45 Republicans voting for an amendment by Republican senator Orrin Hatch of Utah and Democratic senator Amy Klobuchar of Minnesota. Maine independent senator Angus King, who caucuses with the Democrats, also voted for repeal. Republicans hope the nonbinding vote signals a new willingness by Democrats to defy the president on unpopular provisions of his signature law. But repealing the tax is far from a done deal, despite an all-out push by the industry.