that story and much more with ryan enomoto and myself coming up tonight at 5.nversation about the newly approved alzheimer's treatment, and what it means in the overall fight against this disease. we'd love to hear what you think. post results online using the hashtag. kpi x cbs evening news is next. local news continues on our streaming service, cbs news bay area lcu at 5. >> thank you, thank you, thank you. >> adriana: tonight, a defiant joe biden hits the trail to try to save his political future. >> i'm staying in the race.

that story and much more with ryan enomoto and myself coming up tonight at 5.ou for joining us for today's conversation about fireworks safety on this very hot fourth of july across the bay area we want to wish you a safe and happy independence. day. cbs evening news is next on kpi ex local >> this is the hottest i've ever seen it. >> adriana: tonight, the record-breaking heat baking americans, with half the country

that story and much more with ryan enomoto and myself coming up tonight at 5. and thank you for joining us for today's conversation about fireworks safety on this very hot fourth of july across the bay area we want to wish you a safe and happy independence. day. cbs evening news is next on kpi ex local >> this is the hottest i've ever seen it. >> adriana: tonight, the record-breaking heat baking americans, with half the country under heat alerts. >> what we are going to see over the next seven days rivals are biggest heat waves that we have ever experienced. >> adriana: the heat adding fuel to dangerous wildfires across california. plus, a brutal shark attack in texas, as throngs of beachgoers try to beat the heat up your go the "cbs evening news" starts now. ♪ ♪ good evening. i'm adriana diaz in for norah o'donnell. as millions of americans spend this independence day at the beach, celebration turned terrifying on south padre island in texas. that's where at least two swimmers were attacked by a shark, according to cbs affiliate khou. you can see fins in the w

that story and much more with ryan enomoto and myself coming up tonight at 5. and thank you for joining us for today's conversation about the newly approved alzheimer's treatment, and what it means in the overall fight against this disease. we'd love to hear what you think. post results online using the hashtag. kpi x cbs evening news is next. local news continues on our streaming service, cbs news bay area lcu at 5. >> thank you, thank you, thank you. >> adriana: tonight, a defiant joe biden hits the trail to try to save his political future. >> i'm staying in the race. [cheers and applause] i'll beat donald trump. >> adriana: will it be enough to quiet the growing calls for him to drop out of the race? >> we are going to save our democracy. >> adriana: the "cbs evening news" st starts no. mesic musical good evening. i'm adriana diaz in for norah o'donnell. the message from president biden could not have been more clear: he says he is completely ruling out leaving the race. biden hit the trail in battleground wisconsin, knowing mistakes. a growing number of de