The New York Post had alleged that the leaked emails from Hunter Biden's laptop showed that Biden was helping his son's business dealings in Ukraine.
Hence Facebook and Twitter had restricted sharing of this particular article before reversing course amid allegations of censorship. Hence meta owner Mark Zuckerberg said that getting the decision wrong "sucks." In a rare extended media interview on the Joe Rogan podcast, he said, "when we take down something that we are not supposed to, that's the worst."
The New York Post story had exclusive data that no other news agency had access to, met with skepticism and was also centred by various social media outlets. In the podcast, Zukerberg told Regan, "The background here is that the FBI came to us- some folks on our team - and were like 'hey, just so you know, you should be on high alert. We thought there was a lot of Russian propaganda in 2016 elections, we have noticed that basically there's about to be some dump that is similar to that." He clarified that the FBI did not want Facebook about the Biden story in particular - only that Facebook thought it "fit patterns."
But he has acknowledged disagreement about the story, which he said was a "hyper-political issue."