president zelensky stressing diplomatic solution to avoid a bloodshed. right now let s get the u.s. perspectives, arlette, let s start with you. what are they saying? u.s. officials continue to warn that russia could invade ukraine in the coming days. president biden spending the weekend here at the white house over this presidents day holiday, genjen psaki released meeting tomorrow they ll reconvene to discuss. i want to read you a portion. she says the president continues to monitor the evolving situation in ukraine and is being updated regularly of the national security team. they reaffirms russia could launch an attack at any time.
correspondent elizabeth cohen. a lot of interest in this story given how close jen psaki is to the president every day. so walk us through what we know. reporter: erica, the question on everyone s mind, is it possible that jen psaki could have infected president biden? when we spoke to experts, they said it would be virtually impossible. first of all, keep in mind, yesterday he took a covid it is as part of his travel into the united kingdom and it was negative. so there s the first of all. here s the second of all. let s look at the time line and you ll see what i mean. on tuesday of last week, that was the last time that psaki and biden were together. they were outside. they were six feet apart. they were wearing masks. the next day, jen psaki started her quarantine because she said members of her family tested positive. and then she tested negative that day and the next day, all the way until october 30th. it wasn t until yesterday that she tested positive.
but it all starts with you. let s keep making a differene together. a grim milestone today. the world has surpassed 5 million total deaths from covid-19. vaccination efforts continue around the globe and here in the u.s., the white house press secretary genjen psaki has reved she s tested positive for covid-19. she s not traveling with president biden on his european trip. the white house announced the president took a test required to enter the uk and biden was negative. joining us now senior medical