As the sun started its descent behind the U.S. Capitol building on Monday, it seemed virtually certain to rise on a partially shuttered federal government. Jim Watson/AFP/Getty Images hide caption

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Health care delivery is expected to change, with more care provided by nurse practitioners and fewer people having a doctor for life. Images.com/Corbis hide caption

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With President Jimmy Carter watching, Benjamin Civiletti is sworn in by Chief Justice Warren Burger as U.S. attorney general on Aug. 16, 1979. The following year, Civiletti issued a legal opinion saying that federal work cannot go on until Congress agrees to pay for it. AP hide caption

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In friendlier times, Maryland Gov. Martin O'Malley, left, and Texas Gov. Rick Perry participate in a 2011 panel discussion in Washington, D.C. At the time, O'Malley was chairman of the Democratic Governors Association; Perry was chairman of the Republican Governors Association. Now they're in a spat over Perry's efforts to lure Maryland businesses to Texas. Alex Brandon/AP hide caption

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Texas state Sen. Wendy Davis speaks at a fundraiser on July 25 in Washington, D.C. Nick Wass/AP hide caption

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Susan Mull is a substitute teacher in Lancaster County, Pa. She's lived with HIV for 21 years, the past 13 without health insurance. She says an expansion of Medicaid in Pennsylvania would be "life-changing." Jeff Brady/NPR hide caption

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Republican Sen. Ted Cruz is becoming the face of a possible government shutdown over Obamacare, and that has many fellow Republicans bashing him for what they see as an ill-conceived gambit. J. Scott Applewhite/AP hide caption

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Lois Lerner, the head of the IRS division that handles applications for tax-exempt status, listens to opening statements during a hearing before the House Oversight and Government Reform Committee before refusing to testify on May 22. Chip Somodevilla/Getty Images hide caption

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