border. we re live for you in moscow on this order. plus another party hangover for boris johnson. new reports the prime minister attended his own birthday party during lockdown. and inflation has the u.s. president hot under the collar and caught on a hot mic. we ll explain. announcer: live from london, this is cnn newsroom with isa soares. welcome to the show, everyone. it s tuesday, january 25th. we begin with a significant step by the u.s. as fears that russia could be on the verge of invading ukraine. the pentagon has announced that as many as 8500 american troops are now on heightened alert for possible deployment to eastern europe though no final decision has been made. have a listen. in the event of nato s activation of the nrf or