Linda Door protested outside the U.S. Supreme Court as it began hearing arguments on the constitutionality of the Affordable Care Act in March 2012. Carolyn Kaster/AP hide caption

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At the center of the debate: prescription contraceptives. Tim Matsui/Getty Images hide caption

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President Obama: He's been called out on one of his highest-profile promises. Drew Angerer/pool/Getty Images hide caption

itoggle caption Drew Angerer/pool/Getty Images

Doug Normington is 58, self-employed, and has diabetes. Courtesy of Doug Normington hide caption

itoggle caption Courtesy of Doug Normington

Sen. Mary Landrieu, D-La., is facing a tough re-election bid. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

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

itoggle caption J. Scott Applewhite/AP