Franken: Both Letterman and I Think Climate Change Is an Existential Threat

EXCERPT:

FRANKEN: "He said that he’s beginning to lose faith in the Trump Administration."
SCARBOROUGH: "Is he really? What was the turning point for Dave?"
FRANKEN: "It might be climate. He and I both believe that climate change is an existential threat. I told him last night, 'Look, I have three grandchildren. I don’t want them in 50 years saying, 'Grandpa, you knew climate change was happening. You were a United States senator. Why didn’t you do anything? Also, why are you still alive?'' Because I’ll be 110 then."