excessive heat warningsnevada, . several had to be treated for heat-related illness. expected to reach 120 degrees. the hottest temperatures will arrive on monday and last through the end of next week in the southern california desert. highs in death valley could soar to 127 degrees. danielle nottingham, cbs news, los angeles. >>> coming up on "cbs this morning," more on president trump and the russia investigation. chip reid has the latest from the white house. >>> plus, peter greenberg shows us how the u.s. is slowly trying to upgrade its rail systems to catch up with the rest of the world. >>> and -- >> reporter: across the country towns and small communities are using sports tournaments to revitalize their economy. i'm dana jacobson. coming up on "cbs this morning," the fish that saved tennessee. >>> that's the "cbs morning news" for this monday. i'm meg oliver, ha. have a great day. -- captions by vitac -- www.vitac.com ♪ come to sesame place before little kids become, big kids. before dress up, turns to make-up. and tag becomes hashtag. before furry hugs, become