The Supreme Court agreed this week to hear a challenge to a fundamental legal protection enjoyed by social media platforms like Facebook, Twitter and Tik Tok. The ruling could dramatically change how those platforms operate, even affecting search engines like Google, legal experts told ABC News.

The case concerns Section 230 of the 1996 Communications Decency Act, which protects social media platforms and other sites from legal liability that could result from content posted by users.

The law has drawn criticism from elected officials across the political spectrum. In a rare point of agreement, President Joe Biden and former President Donald Trump have both called for the repeal of Section 230 — but for different reasons.