i'm robyn curnow.e country worst hit by the coronavirus pandemic. the u.s. is surpassing more than 12 million confirmed cases on saturday. that's according to johns hopkins university. now remember, we hit 11 million cases just last sunday. no other country has anywhere near that many cases. now the increases are rapid with many states shattering daily records. the nation as a whole has seen more than 100,000 new cases a day for 19 straight days. the numbers are staggering but some health experts say they're probably even worse than we know. >> we are still undertesting. so many states have test positivity rates of above 20%, which means that we are vastly lagging behind in our confirmed cases. so 12.5 million may sound really high, but it's multitudes more than that, actually. and we're starting to think in terms not just of the speed of the rise in cases, not just the acceleration, but how fast acceleration is increasing. >> california is among states seeing this dramatic, dramatic surge. it's tighte

i'm robyn curnow. you're watching cnn. coming up -- >> president-elect joe biden will be announcing member of his cabinet nominees this week. he's looking forward to that, introducing members of his team to the american public. >> we look at some of the names topping joe biden's cabinet list and the reactions they're getting. >>> plus president trump's legal losses keep on piling up and he's also losing support from republicans with more now saying it is time for the president to accept a defeat. >>> it looks like a covid vaccine could be coming sooner rather than later for many americans. >> announcer: live from cnn center, this is "cnn newsroom." with robyn curnow. >>> weeks after the u.s. president lost the election to joe biden, the white house still seems determined to block the transition of power for as long as possible. donald trump is refusing to accept the loss, and there are no signs of him conceding any time soon. however, a growing number of high-profile republicans have had it with his campaign's legal absurd

welcome to cnn, i'm robyn curnow.

i'm robyn curnow and this is cnn. >>> so as the u.s.of coronavirus cases, another holiday threatens to boost covid spread even more. for weeks now, public health experts have been warning americans to stay home this thanksgiving. the message does not appear to be getting through. the transportation security administration screened more than 1 million people at u.s. airports on friday. airlines say they're bracing for their busiest week since the pandemic started. ev vin mac mora santora has more from new york. >> reporter: saturday, researchers at johns hopkins university reported the united states has passed 12 million cases of the coronavirus since the pandemic began. it's a number that continues to rise. there have been 19 straight days of more than 100,000 new cases in this country. what scares public health experts is this surge is coming just at the beginning of the holiday travel season. here at jfk airport in new york things are quiet but other airports in the country saw big crowds. like this crowd at phoenix sky harbor airport

i'm robyn curnow. you're watching cnn. just ahead on the show, covid vaccine shots could be in the arm of some americans by mid-december. the head of operation warp speed is counting on it as a record number of americans spent tonight in hospital with the virus. >>> a shake up in president trump's legal team as his effort to overturn the election results reaches a critical point. >> president-elect biden stocking his cabinet with experience and diversity. >> announcer: live from cnn center, this is "cnn newsroom" with robyn curnow. >> it has been more than two weeks since joe biden won the u.s. presidential election, and the biden transition, even without white house cooperation, is happening but slower than most would like. president trump is still refusing the loss and no signs of conceding any time soon. however, new cracks are appearing in ub are can wall of denial. >> what's happened here is quite frankly the concept that the president's legal team has been a national embarrassment. i've been a supporter of the presid

i'm robyn curnow. you're watching cnn.ill be announcing member of his cabinet nominees this week. he's looking forward to that, introducing members of his team to the american public. >> we look at some of the names topping joe biden's cabinet list and the reactions they're getting. >>> plus president trump's legal losses keep on piling up and he's also losing support from republicans with more now saying it is time for the president to

i'm robyn curnow. we are following this breaking news in the election.in, recount the presidential ballots as the trump campaign requested, on saturday. now, recounts are allowed when the margin of victory is less than .5%, as it was for joe biden. now, the state already did an audit of the presidential vote. so, that will be the third time around, at taxpayer expense. the biden

i'm robyn curnow. you're watching cnn. vaccine shots could be in the arm of some americans by mid-december. the head of operation warp speed is counting on it as a record number of americans spent tonight in hospital with the virus. >>> a shake up in president trump's legal team as his effort to overturn the election results reaches a critical point. >> president-elect biden stocking his cabinet with experience and diversity.