>> reporter: desantis is refusing to budge, seeming to relish a fight with the white house over schools. >> think seriously about, if the federal government can come in and overrule the rights of the parents with covid and force masking of kindergarteners and first graders, given how covid is such a small risk relative to past flus and other respiratory viruses, will they be able to do that every single school year? >> reporter: evan mcmorris-santoro, cnn, new york. and the famed civil rights leader reverend jesse jackson and his wife are both in hospital after testing positive for the virus. that's according to the organization jackson founded, the rainbow push coalition. it says doctors are currently monitoring their condition. the 79-year-old we know is at least partially vaccinated. he received a dose of the pfizer-biontech vaccine in january. still ahead here on the program, tens of millions of