Rush Limbaugh's longtime drug supplier Wilma Cline has angrily denied his lawyer's claim that she and her husband tried to blackmail the conservative talk show host. Wilma, Rush's former housekeeper, spoke out as a judge in West Palm Beach, Fla., dealt Limbaugh, 53, a major blow by ruling that his medical records could be examined by prosecutors as part of an "ongoing criminal investigation." It was the second setback for Limbaugh in 24 hours: Earlier a spokeswoman for his radio network revealed that behind the scenes his attorneys were trying to work out a plea bargain on charges of "doctor...