Low-income adults formerly had few options for free health care. Leah Sessor had her blood pressure taken on April 14, 2012, during a free clinic at a racetrack in Bristol, Tenn. Mario Tama/Getty Images hide caption

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Wisconsin Gov. Scott Walker speaks at the Conservative Political Action Conference in March. Pete Marovich/Getty Images hide caption

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President Obama makes a statement in the Roosevelt Room of the White House on Friday, before the start of a meeting with representatives of health insurance companies. The president said he brought health insurance CEOs to the White House to brainstorm ways to make sure Americans know what their coverage options are under the law. Evan Vucci/AP hide caption

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Henry Chao, the project manager of HealthCare.gov, is sworn in to testify before the House Oversight Committee on Wednesday. J. Scott Applewhite/AP hide caption

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President Barack Obama speaking at the White House on Thursday. Mandel Ngan/AFP/Getty Images hide caption

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On Wednesday, Republican Rep. Darrell Issa's House Oversight and Government Reform Committee, finally got its turn to pummel the Obamacare rollout. The photo is from a Benghazi hearing in September 2013. Drew Angerer/Getty Images hide caption

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Rep. Steny Hoyer, D-Md., the second-highest-ranking House Democrat, didn't close the door to supporting a Republican bill that would allow people to keep policies canceled under Obamacare. J. Scott Applewhite/AP hide caption

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Mario Ricart , an insurance agent with Sunshine Life and Health Advisors, talks with Naylie Villa about buying insurance under the Affordable Care Act on Nov. 5 in Miami. Joe Raedle/Getty Images hide caption

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The mental health parity law passed in 2008, but it didn't cover people in smaller health plans. iStockphoto.com hide caption

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