to block it. republican eric schmitt says he wants to stop the insanity to protect free people. the partisan divide is heavily contributing to the so-called pandemic among the unvaccinated. just under half of all americans are fully vaccinated, making herd immunity for now a pipe dream. meanwhile, the fda and cdc are exploring a possible third dose of covid-19 vaccine. but as of now, only for immunocompromised people. let's begin in louisiana, one of the least vaccinated states in the nation. cnn's suzanne malveaux is in gretna. suzanne, what actions are being taken there amid a spike in infections? >> reporter: pam, i talked to a lot of people in jefferson parish at the mall. they express a lot of fear. fear over the vaccination, fear over the delta variant. and then also a lot of misinformation that people have. so there's lots of questions and

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