Republican Senator-elect Thom Tillis of North Carolina says he expects his party to challenge the president immediately on immigration, and that he hopes President Obama's Defense and Justice nominees will be acceptable to both parties. Davis Turner/Getty Images hide caption

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Sarah Obama, left, and her translator, Mama Sarah Obama Foundation Executive Director Debra Akello, spoke at the United Nations on Wednesday. Bebeto Matthews/AP hide caption

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Russian President Vladimir Putin looks to his side during the family photo session of the G-20 summit in Brisbane, Australia, on Saturday. Putin was sternly criticized by Western leaders over Moscow's involvement in eastern Ukraine. Rob Griffith/AP hide caption

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The second open enrollment period for buying health insurance under the federal Affordable Care Act starts Saturday. Don Ryan/AP hide caption

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Loretta Lynch has handled or supervised a wide range of cases including New York police brutality against a Haitian immigrant, a $45 million cybertheft involving ATMs and the ongoing fraud prosecution of Republican Rep. Michael Grimm of New York. Seth Wenig/AP hide caption

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President Obama meets with congressional leaders in the Old Family Dining Room of the White House on Friday. The president signaled a desire for bipartisan cooperation, but important differences remain between the White House and GOP lawmakers. Evan Vucci/AP hide caption

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