Biden: We have to take gas-powered cars off the road
Harris on Trump: Lead or get out of the way
Cory Booker talks about why he warmed to nuclear power
Klobuchar jokes about Trump’s stance on climate crisis
O’Rourke: We need to support the people of Puerto Rico
Pete Buttigieg: I would ask Trump to step aside
Warren: This is what fossil fuel wants us talking about
Sanders: Trump’s stance on climate change is idiotic
Biden: Military warned us of climate crisis danger
Student calls out Julian Castro’s record on fracking
Sanders’ response to reversing this Trump decision: Duh!
Former Vice President Joe Biden tells CNN’s Anderson Cooper about what it would take for mass transit and a rail system in the US to succeed, and how electric cars could create jobs and opportunities.