President Obama arrives at the Beijing airport Monday. Speaking at the APEC summit, the president unveiled a new deal to ease visa restrictions between the U.S. and China. Lintao Zhang/Getty Images hide caption

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President Obama stumped for gubernatorial candidate Tom Wolf this weekend in Philadelphia. Wolf's victory Tuesday was among the few bright spots for Democrats. Pablo Martinez Monsivais/AP hide caption

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During a news conference on Sunday, Texas Health Presbyterian Hospital Chief Clinical Officer Dr. Daniel Varga answers questions about a health care worker who now has Ebola after providing care for Thomas Eric Duncan. Varga is expected to testify before a House panel looking into Ebola response. Brandon Wade/AP hide caption

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President Obama waves before boarding Air Force One prior to his departure from Andrews Air Force Base on June 26. Jose Luis Magana/AP hide caption

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House Speaker John Boehner at a Capitol Hill news conference last month. He said Wednesday that the Republican-controlled House will file a lawsuit accusing President Obama of failing to carry out laws passed by Congress. J. Scott Applewhite/AP hide caption

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President Barack Obama, first lady Michelle Obama, and Standing Rock Sioux Tribal Nation Chairman Dave Archambault II, left, and his wife Nicole Archambault, right, applaud as they watch a Cannon Ball flag day celebration, at the Cannon Ball powwow grounds in Cannon Ball, N.D., on June 13. Manuel Balce Ceneta/AP hide caption

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James Everett Dutschke, seen here as investigators searched his house last spring, was convicted of sending letters containing the poison ricin to President Obama and other officials. Rogelio V. Solis/AP hide caption

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President Obama prepares to sign an executive order mandating that federal contractors be required to raise the minimum wage they pay their workers to $10.10, at the end of a Jan. 29 appearance at the US Steel's Mon Valley Works in West Mifflin, Pa. Gene J. Puskar/AP hide caption

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Kentucky's Democratic governor, Steve Beshear, has gotten considerable attention for embracing President Obama's Affordable Care Act and adopting the Common Core educational standards. Roger Alford/AP hide caption

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President Obama shakes hands after giving the State of the Union address before a joint session of Congress on Tuesday. Larry Downing/AP hide caption

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Fox News Channel chief Roger Ailes attends a 2012 Hollywood Reporter celebration of "The 35 Most Powerful People in Media" in New York City. Stephen Lovekin/Getty Images hide caption

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President Obama walks off stage after speaking at the "SelectUSA Investment Summit" on Thursday. A poll released the same day found that the president's job approval rating had reached an all time low. Evan Vucci/AP hide caption

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