with his daily activities. there are still a lot of unknowns about that. it was in the days after that debate where not only the president but several people around him who had attended that supreme court celebration at the white house, all had tested positive for the coronavirus. of course, president biden is laughing off the idea that the former president could have put him at risk, but it is a real thing. he could have put him at risk because that is when no one was vaccinated. that is when the treatment for coronavirus was still in very short supply or not even approved by the fda. so it is a serious issue, of course, that we should note former president trump is denying he had coronavirus before that debate. >> kaitlan collins at the white house for us, thank you. let's go to cnn's athena jones at new york liberty national airport. a athena, kaitlan touched on these testing environments being of concern. we also know the cdc is going to