The celebrity physician, often known simply as “Dr. Oz,” is running as a Republican to be senator of Pennsylvania, but although he owes his fame to Winfrey, she has not spoken publicly about his candidacy.“One of the great things about our democracy is that every citizen can decide to run for public office,” Winfrey said in a statement to the magazine. “Mehmet Oz has made that decision. And now it’s up to the residents of Pennsylvania to decide who will represent them.”Earlier this month, Oz reportedly told attendees at a campaign meet-and-greet in New York that he’d asked Winfrey to stay out of his campaign.“I asked her to stay out. Don’t support me because if you get involved in any way, you’ll get hurt and I don’t want my friends hurt,” Oz said, according to the New York Post.