Whitman's campaign has worked hard to win support among independents and Latinos, who are crucial to the campaign of any Republican running in a state in which Democrats hold a 13.4 percentage point edge among registered voters.
But Democrats hope to exploit the housekeeper controversy as a way to question Whitman's character. Whitman fired the woman in June 2009, immediately after she said she found out the housekeeper was in the country illegally.
She then refused to help when the woman asked for help pursuing legal residency. Whitman said the decision was the right one at the time.
She said she had no reason to believe the housekeeper, Nicky Diaz Santillan, was illegal, and had to act within the law.
"We hired Nicky because she had all the appropriate documents, we went through a hiring agency, and then in June of 2009 she came to me to tell me that she was here illegally and did not have the appropriate documents," she said. "I made the hardest decision I have almost made in my life, which was to let her go. ... So it broke my heart. It was incredibly difficult for me to do."
Brown said it was shabby for Whitman not to offer at least initial help to the housekeeper, whom Whitman has described as being like a member of her extended family.
"When someone works with you, you do have familial bonds and ties, and I think if that story is to be believed, I think Meg flunked the most fundamental test of all, and that is to treat people with respect and decency," he told reporters in a post-debate news conference.
Whitman also is addressing allegations from the housekeeper's attorney that she and her husband, a Stanford neurosurgeon, should have suspected the worker's status because of a Social Security Administration letter mailed to their home in 2003.
Gloria Allred, the housekeeper's attorney, is a longtime supporter of Democratic candidates. Whitman told reporters after the debate the controversy is a sideshow from the issues Californians want to focus on, such as jobs and education.
Brown and Whitman had several lengthy exchanges over high-profile immigration issues, including whether illegal immigrants already in the country should be able to seek citizenship and whether the government should crack down on employers who hire illegal workers. They also sparred over the DREAM Act, which would let U.S. high school graduates who were brought into the country illegally as children become legal residents after spending two years in college or the military.
"We need a better e-verify system, three strikes and you're out, you get fined, you lose your business license," Whitman said about her belief that employers need to be targeted. "If we do not hold employers accountable, we will never get our arms around this very challenging problem,"
Whitman, Brown tangle on immigration, illegal maid - Forbes.com