But in the nearly three years since those laws were passed, the political tides on social media have also turned — largely in favor of conservatives. Self-described “free speech absolutist” Elon Musk bought Twitter and later renamed it X, transforming it from a more closely monitored forum into a loosely policed free-for-all. Musk let Trump back onto Twitter in late 2022 — as well as Rep. Marjorie Taylor Greene (R-Ga.) and other far-right figures who had been barred. Meta reinstated Trump to Facebook and Instagram in early 2023; YouTube let him back on in March 2023. And an ecosystem of...