Sen. Tom Coburn, R-Okla., is one of the sponsors of a Republican proposal to rewrite the Affordable Care Act. Alex Wong/Getty Images hide caption

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UPS has told workers that it will no longer offer health coverage for spouses who have their own job-based insurance. Above, a UPS driver makes a delivery in North Andover, Mass. Elise Amendola/AP hide caption

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Insurers get paid more for older people under the Affordable Care Act, even if they're healthy. Tony Ding/AP hide caption

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John Martin, 24, was uninsured until a health care navigator told him he could get coverage through his parents' health plan. Jenny Gold hide caption

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Insurers still charge copays for some contraceptives. Laura Garca/iStockphoto hide caption

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SoloHealth owns 3,500 health screening kiosks like this one in San Francisco. In some states, the company sells customer contact information to insurers. April Dembosky hide caption

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How about back surgery, a cardiac catheterization and an MRI scan? iStockphoto hide caption

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The implementation of the Affordable Care Act draws even more questions than when the law was on the drawing board. iStockphoto hide caption

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Laura Breland gets her teeth cleaned by Denise Lopez-Rodriguez at a community health center in Aurora, Colo., in 2012. Dental coverage is available through the Affordable Care Act. John Moore/Getty Images hide caption

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Maria Webster joins others protesting Texas Gov. Rick Perry's stance against the Affordable Care Act in early 2013. Eric Gay/AP hide caption

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Does having health insurance make it less likely that people will come to the ER? No, says a study in Oregon. iStockphoto hide caption

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