NBC: What you said could incite people who are not balanced. Biden: "I have not engaged in that rhetoric." You called President Trump "an existential threat" and said it's time to put him "in the bullseye." Biden mumbles
Biden, right before he jumps in his 39 vehicle motorcade: "We all must address the existential threat of accelerating climate change. It's real! It's serious. We don't have a lot of time."