On November 3, 2004, Elizabeth Edwards revealed that she had been diagnosed with breast cancer. She was treated by chemotherapy and radiotherapy, and continued to work within the Democratic Party and her husband's One America Committee. On March 22, 2007, during his campaign for the 2008 Democratic nomination for the presidency, Edwards and his wife announced that her cancer had returned; she was diagnosed with stage IV breast cancer, with newly discovered metastases to the bone and possibly to her lung. They said that the cancer was "no longer curable, but is completely treatable" and that they planned to continue campaigning together with an occasional break when she required treatment. In June 2010, Elizabeth published a book called "Resilience". Her book is about the struggles of her marriage and how she was affected by her husband's affair. In the book, Elizabeth talks about how long she was in the dark about the affair and how many times her husband, John, lied about the details of the affair. She never addresses John's mistress by name but calls her a "parasitic groupie" and claims that she is pathetic. Elizabeth also opens up about how she tried to forgive her husband after she first learned of the affair but struggled to find forgiveness when he continued to lie. After Edwards' January 21, 2010, admission that he fathered a child with his mistress, Elizabeth legally separated from him and intended to file for divorce after a mandatory one-year waiting period.