President Joe Biden visits Arizona, Utah and New Mexico this week, as the West - and the world - reels from extreme heat. But are voters buying Biden’s climate message? A new poll says otherwise, as the president catches flak for not declaring climate change a national emergency. CNN Political Director David Chalian breaks down Biden’s latest campaign push, and how younger, climate-minded voters are reacting.To learn more about how CNN protects listener privacy, visit cnn.com/privacy