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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Rep. Henry Waxman, D-Calif., speaks Tuesday at a news conference calling for no reduction in the Medicare and Medicaid budgets, as part of the year-end budget talks on Capitol Hill in Washington. Waxman said he does not support means testing for Medicare. Joshua Roberts/Reuters /Landov hide caption

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Sen. Tom Harkin, D-Iowa, speaks Tuesday as Rep. Elijah Cummings, D-Md., Sen. Sheldon Whitehouse, D-R.I., Sen. Al Franken, D-Minn., and Sen. Ben Cardin, D-Md., listen during a news conference on Capitol Hill calling for no reduction in the Medicare and Medicaid budgets as part of the year-end budget talks. Joshua Roberts/Reuters /Landov hide caption

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Increasingly, companies are contracting with Medicare exchanges to try to ease the transition for their former employees. Michael McCloskey/iStockphoto.com hide caption

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President Obama and Republican presidential candidate Mitt Romney first debated Medicare on Oct. 3. Saul Loeb/AFP/Getty Images hide caption

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Vice President Biden (left) and Republican vice presidential candidate Paul Ryan during Thursday's debate. Saul Loeb/AFP/Getty Images hide caption

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Rep. Paul Ryan, R-Wis., points to piles of the health care overhaul legislation during a markup hearing before the U.S. House Budget Committee last year in Washington, D.C. Alex Wong/Getty Images hide caption

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A key legal case challenging cuts in Medicaid pay for doctors, hospitals and pharmacists is heading back to California. Keith J. R. Binns/iStockphoto.com hide caption

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A screen grab from "America the Beautiful" by The Agenda Project. According to PolitiFact, videos like this one used elderly actors to falsely suggest that Rep. Paul Ryan's Medicare plan would adversely affect current senior citizens. The Agenda Project/YouTube hide caption

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Joseuly Claudio, 53, gets weekly checkups from nurse practitioner Mary McDonagh at Mt. Sinai Hospital in New York. Fred Mogul/WNYC hide caption

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