Last week, podcast giant Joe Rogan had Hotez on his show, where he proceeded to badmouth anti-vax presidential candidate Robert Kennedy Jr. - before telling Rogan that he'd be 'uncomfortable' debating him.

Joe Rogan First Challenged Peter Hotez to Debate RFK Jr on the Science of Vaccines in 2019, But He Declined...

"He's an attorney and he's very clever and he knows how to do arguments in court. And what am I? I'm a scientist." pic.twitter.com/oJuXudzsux

— Kathie (@TheCrimsonWorm) June 18, 2023

Rogan also called him out for being a hypocrite;

.@JoeRogan grills Dr. Peter Hotez for exclusively promoting vaccines while disregarding exercise, vitamins, and a healthy diet:

"There's a large body of data that connects poor diet to a host of diseases... You don't think vitamins are needed while you eat junk food?" pic.twitter.com/5RNmAEReTf

— KanekoaTheGreat (@KanekoaTheGreat) June 18, 2023

In response, Rogan offered to donate $100,000 to charity if he would debate RFK Jr. - who basically called Hotez a little bitch:

Peter. Let's finally have the respectful,congenial,informative debate that the American people deserve.

— Robert F. Kennedy Jr (@RobertKennedyJr) June 17, 2023