26 MOODY v. NETCHOICE, LLC Opinion of the Court such misattribution). Yet all those entities, the Court held, were entitled to First Amendment protection for refusing to carry the speech. See supra, at 14–16. To be sure, the Court noted in PruneYard and FAIR, when denying such protection, that there was little prospect of misattribution. See 447 U. S., at 87; 547 U. S., at 65. But the key fact in those cases, as noted above, was that the host of the thirdparty speech was not itself engaged in expression. See supra, at 16–17. The current record suggests the opposite as to Facebook’s News Feed and YouTube’s homepage. When the platforms use their Standards and Guidelines to decide which third-party content those feeds will display, or how the display will be ordered and organized, they are making expressive choices. And because that is true, they receive First Amendment protection. C And once that much is decided, the interest Texas relies on cannot sustain its law. In the usual First Amendment case, we must decide whether to apply strict or intermediate scrutiny. But here we need not. Even assuming that the less stringent form of First Amendment review applies, Texas’s law does not pass. Under that standard, a law must further a “substantial governmental interest” that is “unrelated to the suppression of free expression.” United States v. O’Brien, 391 U. S. 367, 377 (1968). Many possible interests relating to social media can meet that test; nothing said here puts regulation of NetChoice’s members off-limits as to a whole array of subjects. But the interest Texas has asserted cannot carry the day: It is very much related to the suppression of free expression, and it is not valid, let alone substantial. Texas has never been shy, and always been consistent, about its interest: The objective is to correct the mix of speech that the major social-media platforms present. In this Court, Texas described its law as “respond[ing]” to the