Former McCain rival suggests he resign because of cancer

An Arizona Republican who tried to oust Sen. John McCain last year suggested Friday that he resign because he has been diagnosed with an aggressive form of brain cancer.Kelli Ward, who is a doctor, said in a statement that the 80-year-old McCain's diagnosis is grim and that his cancer, glioblastoma, "is both devastating and debilitating.""As a doctor, I've counseled patients in similar situations and these end-of-life choices are never easy. I usually advise terminal patients to reduce stress, r