WASHINGTON, DC - OCTOBER 29: House Ways and Means Committee Chairman Dave Camp (R-MI) presides over a hearing about the implimentation of the Affordable Care Act in the Longworth House Office Building October 29, 2013 in Washington, DC. Centers for Medicare and Medicaid Services Administrator Marilyn Tavenner is the first Obama Administration to testify before Congress since the troubled launch the federal exchange website. 'I want to assure you that Healthcare.gov can be fixed, and we are working around the clock to give you the experience that you deserve,' she said.