A group of 10 publications asked a Maryland federal court to enact a new state law that would curb Russian propaganda online as unconstitutional and a violation of the First Amendment, by compelling the media to regularly publish details about the purchasers of political ads.

Supporters of the law say the measure would fight Russia propaganda by forcing publishers to keep copies of materials that state elections officials would be able to review in order to uncover foreign interference in elections.

However, the publications argued that the law would hinder free speech and violate the First Amendment's protections on the right not to publish.

Seth Berlin, an attorney for the publications, said of the law, "It compels newspapers to publish, regulates far more speech – and speakers – than necessary, is filled with vague provisions that are impossible to follow, and allows courts to issue prior restraints on newspapers."

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