william: leah stokes from uc santa barbara, thank you so much for being here. much for having me on. ♪ william: the crowded but static gop presidential primary has dominated national attention this summer. but on the democratic side, president biden has largely avoided any serious primary challengers. the president has served in federal government for more than 40 years. and while the majority of his party is behind him, some are calling for a change. white house correspondent laura barron-lopez has more. laura: dean phillips is a third-term democratic congressman from minnesota, and he thinks president biden should not seek reelection. phillips wants the president to pass the torch, but so far, none of the big names in his party want to pick it up. congressman phillips joins me now. congressman, thank you so much for joining us. president biden is the oldest sitting president in history. but you have said this is not about age. so what is this about? dean: let me start by complementing him. i think president biden is a remarkable man, a man who saved our count

. >> leah stokes researches energy and climate policy. >> under his administration, there was a massive of bedrock environment to agencies like the environmental protection agency, rolling back hundreds of environmental regulations. >> other leading republicans, like florida governor ron desantis, have also dismissed the issue as an exaggerated left wing talking point. >> i've always rejected the politicization of the weather. >> florida often suffers from disasters made worse by climate change. since 2020, 16 major storms have caused over $100 billion in damage to the state. sending insurance rates through the roof and some insurance companies out of state. despite his rhetoric, ron desantis has implement the programs to address these disasters. >> on the ground, he has taken steps to protect florida against stronger storms, rising sea levels. what you are seeing is also common among many republicans in areas deeply threatened by climate change and resistance to push on fossil fuels, but openness and willingness to address what we call adaptation. protecting areas against the consequen