Across the world, immunologists who retooled their labs to join the fight against SARS-CoV-2 are furiously trying to explain why some people get so sick while others recover unscathed. The pace is dizzying, but some clear trends have emerged.

One area of focus has been the production of antibodies – powerful proteins capable of disabling and killing invading pathogens like viruses. Of great concern has been the sporadic identification of so-called autoreactive antibodies that, instead of targeting disease causing microbes, target the tissues of individuals suffering from severe cases of COVID-19.

White House Press Secretary Kayleigh McEnany is a loyal mouthpiece for President Donald Trump, both in presidential policy and against his political opponents in the election campaign. She has echoed Trump's attacks on Joe Biden, calling him a "radical socialist" and using monikers like "Sleepy."

But on Monday, CNN unearthed audio of McEnany from 2015 during an interview on New York AM970, in which she offered a very different view.

"I think the Republicans run into a problem if it is Joe Biden and if it is maybe a Trump on the other side," said McEnany. "Because Joe Biden, one of the things he is remarkable at is really kind of being a man of the people and resonating with middle class voters. Feeling like — coming off as human. His gaffes — as much as we make fun of them — to a certain extent they make him look human. So not, since he's likable."