The Biden administration is moving forward with its climate agenda following a new ruling striking down the "secret science" rule. Kim Smaczniak, managing attorney of the clean energy program at Earthjustice and former lead mitigation negotiator for the State Department under President Obama, breaks down what the rule is and what its cancellation means for Biden's plans. Sammy Roth, energy reporter at the Los Angeles Times, weighs in on how the Biden administration will make writing about climate change different. And Tom Steyer, climate activist and former presidential candidate, discusses why the U.S. must be a world leader when it comes to the fight against global warming.