The Hobby Lobby chain of arts and crafts stores has gone to court to block a provision of the administration's health law that requires employers' health plans to pay for contraceptives. Tony Gutierrez/AP hide caption

itoggle caption Tony Gutierrez/AP

Rep. Pete Stark, a California Democrat, was defeated in November. Stark leaves a long-lasting mark on the nation's health care system. Jeff Chiu/AP hide caption

itoggle caption Jeff Chiu/AP

The majority of what happens on Jan. 1, 2013, is tax increases and cuts in tax deductions to pay for the changes coming in 2014. iStockphoto.com hide caption

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Researchers find that more than 40 percent of surgical complications happen after patients leave the hospital. iStockphoto.com 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

itoggle caption Nati Harnik/AP

Problems with a computer system could delay work on health insurance exchanges. iStockphoto.com hide caption

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New Jersey Gov. Chris Christie listens to a question in Trenton, N.J., Tuesday. He has refused to tip his hand on whether New Jersey will set up a federally mandated health insurance exchange or let the federal government handle the chores. Mel Evans/AP hide caption

itoggle caption Mel Evans/AP

Two new studies and a proposed class-action lawsuit settlement all have the potential to change dollar signs as lawmakers address the impending fiscal cliff. iStockphoto.com 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

itoggle caption Mark Humphrey/AP

A medical assistant checks a patient's blood pressure at a community health center in Aurora, Colo. Metro Community Provider Network has received some 6,000 more Medicaid eligible patients since the health overhaul law was passed in 2010. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images