Fiorina says she quoted a friend when commenting on Barbara Boxer's hair

California's GOP US Senate candidate Carly Fiorina says she quoted a friend when her comment on US Senator Barbara Boxer's hair was caught by a live microphone during a California television appearance Wednesday.

Carly Fiorina says she was quoting a friend when she was caught on an open microphone making fun of an opponent's hairstyle, just hours after clinching the GOP nomination for U.S. Senate.

Fiorina was prepping for an interview with Sacramento's KXTV on Wednesday morning when she was recorded laughing loudly while describing Barbara Boxer's hair as "so yesterday."

But during an interview Wednesday night on the Fox News Channel with Greta Van Susteren, Fiorina said the words she used to characterize the three-term senator's hair were not her own.

Fiorina added that her own hair has been "talked about by a million people."

The microphone also captured Fiorina questioning Republican gubernatorial nominee Meg Whitman's decision to be interviewed Wednesday by Fox's Sean Hannity. Fiorina called it "bizarre" and a "bad choice."

Fiorina told Van Susteren that she has apologized to Hannity and will appear on his show Friday.