 Sponsored by Progressive Insurance. I'm Stacey Lynn. Extreme heat is blanketing much of the country and it's going to stick with us for a few weeks. Here's CBS's Adriana Diaz. From the Mexican border all the way up to Canada, temperatures are soaring. The high heat creating a tinderbox for wildfires out west. In California, records more than a century old could melt. While along the Texas coast, preparations and some evacuations are underway for Tropical Storm Beryl,