 Every day I'm a victim, five days a week. In the Kaleidoscope with Alison Keys segment, urban heat islands leaving tens of millions at risk. The lack of trees and the lack of green space is where the heat problems really come. I'm Alison Keys in Washington. The presidential race on fire amid questions over Democratic incumbent Joe Biden's fitness for office and Republicans gathering in Milwaukee next week to formally nominate former President Trump. We begin with CBS's Matt Piper.