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Democratic presidential hopeful US Senator Hillary Clinton (D-NY) walks to her car after voting in the Democratic primary election, on February 5, 2008 in Chappaqua, New York.  At right is Huma Abedin, Clinton's traveling chief of staff. The latest polls show Democrats Hillary Clinton and Barack Obama neck-and-neck, while on the Republican side, Senator John McCain holds a comfortable lead over rival Mitt Romney, the former governor of Massachusetts.
Democratic presidential hopeful US Senator Hillary Clinton (D-NY) walks to her car after voting in the Democratic primary election, on February 5, 2008 in Chappaqua, New York.  At right is Huma Abedin, Clinton's traveling chief of staff. The latest polls show Democrats Hillary Clinton and Barack Obama neck-and-neck, while on the Republican side, Senator John McCain holds a comfortable lead over rival Mitt Romney, the former governor of Massachusetts.

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Top Clinton aide testifies at Benghazi hearing

Huma Abedin, a top Clinton aide, testifies in front of the Benghazi committee. CNN's Manu Raju reports.

Top Clinton aide testifies at Benghazi hearing

Huma Abedin, a top Clinton aide, testifies in front of the Benghazi committee. CNN's Manu Raju reports.