People wait to enter the Supreme Court in Washington Monday as it begins its new term. The justices cleared the way Monday for an immediate expansion of same-sex marriage by unexpectedly and tersely turning away appeals from five states seeking to prohibit gay and lesbian unions. J. Scott Applewhite/AP hide caption

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President Obama, accompanied by Attorney General Eric Holder, speaks in the State Dining Room of the White House on Thursday to announce that Holder is resigning. Holder, who served as the public face of the Obama administration's legal fight against terrorism and weighed in on issues of racial fairness, is resigning after six years on the job. Evan Vucci/AP hide caption

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Sen. Ted Cruz, R-Texas (center left) is a Tea Party favorite, whom observers count as a possible 2016 presidential candidate. He voted against President Obama's plan to fight the Islamic State. J. Scott Applewhite/AP hide caption

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President Obama addresses the nation from the Cross Hall in the White House on Sept. 10. Obama ordered the United States into a broad military campaign to degrade and ultimately destroy militants in two volatile Middle East nations, authorizing airstrikes inside Syria for the first time, as well as an expansion of strikes in Iraq. Saul Loeb/AP hide caption

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President Obama addresses the nation from Cross Hall in the White House on Wednesday. Opening a new military front in the Middle East, Obama authorized U.S. airstrikes inside Syria for the first time, along with expanded strikes in Iraq as part of a broad mission to root out violent Islamic State militants. Saul Loeb/AP hide caption

itoggle caption Saul Loeb/AP

Members of the Senate and the House of Representatives return to work at the Capitol this week after a five-week vacation. They must get to work on a continuing resolution to extend funding for government agencies to prevent a government shutdown. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP