The Republican Senate candidate from California regrets mocking her opponent's hair but still won't apologize for the gaffe.

Prior to an interview at a California television station, an open mic caught Carly Fiorina saying, "Laura saw Barbara Boxer briefly on television today, and said what everyone says, 'God what is that hair.'"

Fiorina attempted to explain her comment Sunday. "I was quoting a friend of mine, but look, I regret this whole situation. I gave people the opportunity to talk about something petty and superficial. This is a very serious election year about serious issues," she said in an appearance on Fox News Sunday.

Fox News' Chris Wallace asked Fiorina if she had called Boxer to apologize.

"What I think I owe the voters is a commitment to stay focussed on fact, on issues and on the things that really matter and I will keep that commitment to the voters," said Fiorina.

This video is from Fox's Fox News Sunday, broadcast June 13, 2010.

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