CNN viewers demanded “proof of life” after the 79-year-old president conducted the interview entirely by text.

Donald Trump has sparked a fresh frenzy about his health after giving a very unorthodox CNN interview. The 79-year-old president gave an exclusive interview to State of the Union host Jake Tapper Sunday, but bizarrely texted his answers in at an unspecified time before the show rather than speaking in person or calling. In his interview, graphics of Trump’s texts were shown on screen.