According to the ongoing Twitter Files being released under Elon Musk. The FBI not only worked with Twitter employees to supress information beofre the election but granted Twitter employees temporary security clearance. Twitter setup a private, one-way communication channel directly from the governement to Twitter that included at least the FBI and perhaps the CIA and NSA.
45. In the end, the FBI's influence campaign aimed at executives at news media, Twitter, & other social media companies worked: they censored & discredited the Hunter Biden laptop story.— Michael Shellenberger (@ShellenbergerMD) December 19, 2022
By Dec. 2020, Baker and his colleagues even sent a note of thanks to the FBI for its work. pic.twitter.com/ZEASt2aXXm
Images of the emails are provided below.