Twitter owner Elon Musk in response to former US astronaut Scott Kelly, who called US President Joe Biden's Chief Medical Advisor Anthony Fauci a "dedicated public servant", said, "He lied to Congress and funded gain-of-function research that killed millions of people." This comes after Musk said Fauci should be prosecuted. "My pronouns are Prosecute/Fauci," Musk had tweeted.