WASHINGTON - If Secretary of State Hilary Clinton harbors ambitions to run for president, she is keeping them under tight wraps.

"I have no earthly idea what she'll decide to do," her husband, former President Bill Clinton, said on CBS television's "Face the Nation" on Sunday.

Although Hilary Clinton went down to defeat to President Barack Obama in a close primary contest in 2008, she has stayed in the public eye as the president's top diplomat. In that role, Clinton, who had been a U.S. Senator from New York, has built a reputation as a capable stateswoman and a loyal lieutenant to the president. She is frequently rated as the most popular member of Obama's cabinet.

Clinton has said will step down from her current job whether the president wins re-election or not.

"She wants to take some time off, kind of regroup. Write a book," her husband said.

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