unprecedented sanctions against russia if it invades. the president is scheduled to return to the white house tomorrow when he does he faces significant covid challenges as americans returned to work in school. some waited in line for hours over the holidays to get covid test. the administration has tried to buy 500 million test to send out free the administration faces criticism over evolving covid guidance medical experts as the virus continues to change. >> i do think there is confusion after because you have one set of rules for healthcare workers and another one for those in the school systems and now one for the general public. i would like to see harmonization of those because there's a lot of information out there that we need to simplify more for the public. >> the president faces covid related legal challenges. the supreme court friday will hear cases involving their administration mandates for