charlie demarr has this story. >> reporter: chad suspect one for small or conventional ideas. and today, he's busy trying to drum up support for his latest. he has spent the last two decades aboard barges cleaning up rivers for his waters foundation. but home is along the mississippi. and if he gets his way, bison may roam high above the river on the i-80 bridge. >> this might sound crazy, but i want the best west bound lane dedicated to a small herd of bison. people would stop. 42,000 cars are driving over that bridge a day and going. >> reporter: the 55-year-old bridge is on its last legs and scheduled to be replaceded. demolishing the b bridge wououl cocost millioions. >> introduducing the bisonon br project. >> reporter: h he wants t to ra money y to turn ththe bridge in natitional m monument where bis can wander from one state to the other, and people can stop and stay a while. the bridge is in congresswoman busto's districtct. >> chahad is thinking five, six years out. >> reporter: she's on board and has been pitchining the prorojeo the white house. >> we want the bison

charlie demarr, cbs news, moline, illinois. >> and that's the overnight news for the nation's capitol, i'm jan crawford. >>> it's wednesday, june 23rd, 2021. this is the "cbs morning news." missing the mark. the race to partially vaccinate 70% of americans by july 4th is expected to fall short as a dangerous strain of the coronavirus rapidly spreads. >>> bombshell revelations. a new report on the murder of journalist jamal khashoggi. how his killers allegedly received training in the u.s. >>> cattle call. dozens of escaped cows stampede through a california neighborhood leaving at least neighborhood leaving at least one person injured. captioning funded by cbs >>> good morning. good to be with you. i'm anne-marie green. we're going to begin with the white house falling short of meeting its covid vaccination goal as young adults continue to opt out of getting the shot. president biden wanted 70% of adults partially vaccinated by july 4th. but with less than two weeks to go, that number is just over 65%. this comes as the delta variant is now responsible for more than 20% of infections