announcer: this is nbc nightly news with lester holt good evening in the constant chase to get ahead of covid-19, a new omicron-specific vaccine is about to enter testing but in a measure of just how quickly this pandemic is evolving, the question being asked, will we need it by the time it s ready? the modified vaccine by pfizer perhaps months away as new covid cases continue to drop, still leaving overwhelmed hospitals, which are now finding some antibody treatments against omicron are not working. also today, the biden administration is pulling its rule that employees at large companies either be vaccinated or regularly tested as now two years into the pandemic, mask rules continue to generate heat. miguel almaguer starts our coverage reporter: announcing the start of their new clinical trial today, pfizer says it s testing if their new reformulated covid vaccine will specifically target the omicron variant and to see how effective that new formula would be. with
john eastman s work on behalf of the former president in the days leading up to the insurrection. we want to welcome our viewers here in the united states and around the world. i m wolf blitzer. you re in the situation room. we begin with the threat of an imminent war in ukraine. president biden is sharing new information about u.s. moves to deter a russian invasion as 8500 american troops are now on a state of heightened alert. our chief white house correspondent kaitlan collins spoke with tpresident today. kaitlan, what is the white house saying tonight about predicting putin s next move? wolf, president biden spent the morning meeting with his national security team. and afterward he told us just how difficult he believes it is to predict what president biden is ultimately going to do. something that president biden says he doesn t even believe the russian leader s top aides fully understand what he is thinking on this. still, president biden did warn if president puti
putting american forces, nato forces in ukraine. reporter: a frenzy of activity this week. national security official holding classified briefings with congressional staffers on the situation in ukraine. we re working all member briefings for the house and the senate in the coming days. reporter: american citizens in ukraine including nonessential staff at the u.s. embassy urged to leave the country. the u.s. prepares to share its concerns with russia in writing. and a warning from the department of homeland security that if provoked, russia could launch a cyber attack against the u.s. broadly, we are always preparing for any action that related to cyber or any other activity that any country could take. reporter: the president in close consultation with world leaders. we re all on the same page. we have to make it clear that there s no reason for anyone, any member of nato to worry whether or not we, nato works come to their defense. reporter: it continues with
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i will add this we have 200, 700,000 missing but 200 remains of. ainsley: 55 boxes of remains came back not sure how many they belong to. kim jong un came home from that summit and he promised him that he would do this and he did. the president sent out a tweet yesterday thanking him for that pete hegseth is in hawaii with the vice president. pete, we re seeing these coffins, these boxes with the american flag. yesterday they were in south korea with the united nations flag. but it s beautiful to see them with the red, white, and blue, finally back home on american soil, right? boy, that s exactly right. a lot of people commented on that. it s great to see them in the red, white, and blue, home where they belong. this was the arrival for the first time back on american soil. a few miles behind us in hanger 19 on air force base hickha
everybody loves molly, nothing like this has ever happened. jillian: it is thursday, august 2nd, fox news alert. the brand-new clue and a break in the search for the missing iowa students. todd: the russia probe must end, the message from donald trump to his own attorney general. jillian: will he sit down with robert mueller? president obama endorsed a long list of 2020 contenders but there s one name noticeably missing. todd: fox and friends first continues right now. ain t no mountain high enough ain t no mountain low enough ain t no mountain high enough keeping me from getting to
you rob: that is how it happened. that is something. a very good morning to you as you watch fox and friends first thursday morning. jillian: thanks for starting your day with us. let s start with a fox news alert, a break in the search for molly tibbetts. police looking into a reported sighting in missouri. heather: stop 200 miles from where the 20-year-old went missing in brooklyn, iowa