is it terrorism? is it isis? no he, he says it's. this. >> >> four years ago i came here to iowa and i was asked what is the major national security issue people thought i would say isis or al qaeda and those are big issues. the answer that i gave in terms of national security is climate change. ainsley: the biggest national security threat, according to bernie sanders is climate change. pete: the left says it all the time. this is what they believe. it is their religion. they want to fight the weather. the rest of us want to deal with real threats that want to take away our freedoms. think about four years ago. what was that 2015? isis was still, you know, this is during obama's term. isis was still a huge problem. the caliphate was there president trump ran on destroying isis, which he did to their physical caliphate. now there is remnants we need to be concerned about today. that's taking on a real