Colonoscopy copay? Zero. iStockphoto.com hide caption

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Gov. Bill Haslam speaks to reporters after announcing in Nashville, Tenn., on Monday that that he had decided against creating a state-run health insurance exchange. The Republican governor said he will leave it to the federal government to run the marketplace. Erik Schelzig/ASSOCIATED PRESS hide caption

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Arkansas Gov. Mike Beebe speaks about expanding Medicaid during a speech to the Arkansas State Chamber of Commerce in Little Rock, Ark., on Nov. 14. The federal government hasn't set a deadline for states to decide on their Medicaid expansion plans. Danny Johnston/AP hide caption

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Nebraska Gov. Dave Heineman announced Thursday that his state will choose the federal health insurance exchange program. Nati Harnik/AP hide caption

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Tennessee Gov. Bill Haslam said last week the state could design its own health insurance exchange required under President Obama's health care law. But resistance in the Republican-controlled General Assembly may cause the state to hand that power off to the federal government. Mark Humphrey/AP hide caption

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In June, former Massachusetts Gov. Mitt Romney was making the case for the repeal of the administration's health law. With his defeat, the law is looking secure. Charles Dharapak/AP hide caption

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Denver Health has a network of clinics to keep track of patients discharged from its hospital. Denver Health hide caption

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Health and Human Services Secretary Kathleen Sebelius joins Democratic senators at a news conference on Capitol Hill on Tuesday to announce new preventive health coverage for women that takes effect Wednesday. Win McNamee/Getty Images hide caption

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When the U.S. Supreme Court made a Medicaid expansion optional under the Affordable Care Act, the decision lowered the estimated cost of the law. Chip Somodevilla/Getty Images hide caption

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Joy Reynolds of San Diego, Calif., looks over Friday's front pages on display at the Newseum in Washington, the day after the Supreme Court ruling on President Barack Obama's health care law. David Goldman/AP hide caption

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Protesters and supporters of President Obama's health care law await the Supreme Court's ruling Thursday. The court ruled to uphold the law. The focus now shifts to the states, which are responsible for the lion's share of getting people without insurance covered. Kevin Dietsch/UPI /Landov hide caption

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