Abortion coverage was a key sticking point during the congressional debate on the new health law. Lawmakers eventually agreed to let states decide. Mark Wilson/Getty Images hide caption

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Vice President Biden (from left), Health and Human Services Secretary Kathleen Sebelius, President Obama and Budget Director Sylvia Mathews Burwell at the White House Friday. Sebelius is stepping down. Burwell is being nominated to replace her. Charles Dharapak/AP hide caption

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Sen. Mary Landrieu, D-La., speaks at an Oct. 2013 news conference on Capitol Hill in Washington. Landrieu's support for the Affordable Care Act is center stage in her campaign for a fourth Senate term. Evan Vucci/AP hide caption

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Yudelmy Cataneda, Javier Suarez and Claudia Suarez talk with insurance agent Yosmay Valdivian at a session to sign up for health insurance in a Miami mall March 20. Joe Raedle/Getty Images hide caption

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Janelle Arevalo, an insurance agent with Sunshine Life and Health Advisors, makes a house call in Miami to sign up Sandra Berrios (left) for an insurance plan under the Affordable Care Act. Joe Raedle/Getty Images hide caption

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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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