Anthony Fauci doesn’t have a Twitter account. But he does have a lot to say about the recent scrutiny following the release of his emails from 2020 — an especially busy time in his tenure as America’s chief immunologist. Republicans like Ron DeSantis have used the emails as fodder for criticism, accusing him of “faucism” (yes, that’s a play on fascism). Fauci’s response: “Here’s a guy whose entire life has been devoted to saving lives. And now you’re telling me he’s like Hitler? Come on, folks. Get real.”

In this conversation, Kara Swisher and Fauci parse the science from the politics. She presses him on the Wuhan lab leak theory, which critics claim Fauci and the media were too quick to dismiss. They discuss what went wrong with his early mask-wearing guidance and whether there is room for error or evolution of advice when it comes to public health in a social media age. And of course, they dig into some of the 4,000 or so pages of Fauci’s emails, including exchanges with Sylvia Burwell, the former Health and Human Services secretary, and Mark Zuckerberg. (No, he was not asking Zuck for help with his Instagram.)

You can find transcripts (posted midday) and more information for all episodes at nytimes.com/sway, and you can find Kara on Twitter @karaswisher.