Do they have proof that the government suppressed free speech? AG'S sue Biden over suppression of free speech.

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Attorneys General from Louisiana and Missouri. They have jointly filed a suit against the Biden administration, claiming that Biden’s team has been working directly with Big Tech going back to the early days of the 2020 election, pressuring Facebook, Twitter, YouTube, and others to take down dissenting opinions. (Washington Examiner) 

The suit specifically calls out Joe Biden personally, along with Jen Psaki and others, accusing them of collusion with the Big Tech oligarchs to suppress speech. As evidence, they point to emails exchanged between Anthony Fauci and Mark Zuckerberg regarding the dissemination of “disinformation” about COVID-19 on Facebook. 

Also mentioned are direct calls from Psaki while standing at the White House briefing lectern directed at the leaders of social media platforms, calling on them to do more to “combat disinformation.”