we go to the mayor of phoenix, kate gallego who joins us from scottsdale.morning to you, mayor. every single day this month it's been 110 or above in your city. i know you're used to hot weather in the desert, but the duration of this heat wave. what has been the impact? >> the heat has been unrelenting in our community. i'm so thankful to our first responders who are out there taking care of people who are vulnerable, to anyone who has to work outdoors. we appreciate what they're doing. we're urging them to be careful. we got a little bit of precipitation last night, so it was a little cooler this morning, and it was a real gift. >> the public service, your power grid operator there in arizona told us they're marking seven days in a row of the highest customer electricity use ever. so that's a lot of strain and we're not en into august. is this sustainable? >> we have to be innovative and that is the phoenix way. we build for extreme temperatures in the summer so we've made infrastructure investments that help us get out of these challenges, but this summe