Sen. Rand Paul debates CNN host Jake Tapper on the issue of climate change, and the president's decision to withdraw from the Paris climate accord. Paul argued that scientists have been predicting disaster for decades, while Tapper disagreed, claiming about the predictions: "all of it has happened." "You need to make sure that your viewers know that most of [climate scientists’] models has been wrong," Paul said. "They adjust it every year because they haven’t been good at predicting things."