WASHINGTON - John McCain sought to minimize damage to his man-of-character image and his presidential hopes Thursday, vigorously denying and denouncing a newspaper report suggesting an improper relationship with a female lobbyist. "It's not true," the likely Republican nominee said of the report that implied a romantic link with telecommunications lobbyist Vicki Iseman and suggested McCain pushed legislation that would have benefited her clients. "At no time have I ever done anything that would betray the public trust," said McCain, a four-term Arizona senator and a hero of the Vietnam War. He described the lobbyist as a friend. McCain and...