LEBANON, New Hampshire (CNN) -- Laura Bush on Thursday brushed off comments about her work experience that were made by Teresa Heinz Kerry, who told USA Today she was unsure if Bush had ever held a "real job."

Asked about Heinz Kerry's apology Wednesday for what she said, Bush responded, "It didn't matter to me. It didn't hurt my feelings. It was perfectly all right that she apologized. She didn't have to apologize. I know how tough it is. And actually I know those trick questions."