Hillary Clinton took her criticism of Donald Trump up a notch in an interview with Charlie Rose, calling him “the most dangerous man to ever run for resident” in an interview that aired Monday night. “No self-discipline, no self-control, no sense of history, no understanding of the limits of the kind of power that any president should impose upon himself. He has shown none of that,” Clinton said. She warned that if Trump were to become president, his leadership could run the country into the ground. “What he has laid out is the most dangerous, reckless approach to being president than I think we’ve ever seen,” she said. As for Trump’s popularity, Clinton conceded that Trump could be appealing to many Americans with his “simplistic, easy answers.” A poll released Monday showed that Trump was actually gaining on Clinton. According to the poll by Monmouth University, Clinton held a 3 percentage point lead over Trump in July—compared to 6 percentage points last month.