with hurricane dorian strentened to a category 3 storm still bearing down on the portions of the u.s. mainland. ten democratic candidate spent seven hours here tackling the problems and solutions for the worl worlds climate crisis. the powerful storm highlights the fragile nature of the environment. i'll talk about what happened here tonight. former green jobs adviser to president obama. van jones. and clinton campaign. both van and jess are cnn political comment at a timers. >> elizabeth warren is incredibly impressive person. she was she understands this stuff and explains it better than anybody else. as usual she wins the night. i was really impressed with pete buttigieg. that was really impressed with corey booker. i want to give him credit for