The constitutional protection against compelled publication does not disappear when we move from print to the internet, or from a news outlet to a website that invites users to post their own opinions. As Justice Brett Kavanaugh noted when he was a judge on the U.S. Court of Appeals for the D.C. Circuit, “the Government may not…tell Twitter or YouTube what videos to post” or “tell Facebook or Google what content to favor.”

Yet that is what H.B. 20 purports to do. The law says “social media platforms” with more than 50 million active monthly users in the U.S. may not “censor” content based on the “viewpoint” it expresses. That edict covers any effort to “block, ban, remove, deplatform, demonetize, de-boost, restrict, deny equal access or visibility to, or otherwise discriminate against expression.”

H.B. 20 makes a few exceptions, including “expression that directly incites criminal activity” and “specific threats of violence” that target people based on their membership in certain protected categories. But otherwise the rule’s reach is vast: As two trade organizations note in a federal lawsuit they filed last week, H.B. 20 “would unconstitutionally require platforms like YouTube and Facebook to disseminate, for example, pro-Nazi speech, terrorist propaganda, foreign government disinformation, and medical misinformation.”