Turley warns that the Harris-Walz administration would be a "perfect nightmare" for free speech.

The Brazilian Supreme Court's decision to uphold a ban on X has sparked concerns about a potential free speech crackdown in the country, prompting many to wonder if a similar move could occur in the U.S. In an interview on "Fox & Friends" Wednesday, constitutional scholar Jonathan Turley warned that the anti-free speech movement is gaining momentum and could soon reach American shores.

In my new book, 'The Indispensable Right,' I discuss the growing anti-free speech movement that's been taking place worldwide. This wave is now reaching our shores, and despite their efforts, they have not been successful in convincing people to give up their freedom. It's a difficult sell to get a free people to relinquish some of their liberties. Facebook even launched a commercial campaign to encourage young people to embrace censorship. This is their plan B. In Europe, there are threats against Musk for arrest, and another CEO of a platform has already been arrested. However, it is Brazil that many in the anti-free speech movement are closely watching. If Brazil can successfully ban Twitter from the entire country, it will set a precedent that will be replicated. Many people view speech as a privilege, similar to a driver's license that can be revoked if misused. Ultimately, this movement aims to take sites offline to prevent people from hearing opposing views.

The First Amendment is being challenged by a movement led by one of my colleagues. They argue that the amendment is too individualistic, but the point is that it protects individual rights. However, they believe that more protection is needed through Congress. This issue should be a major focus of the upcoming election. In 1800, Thomas Jefferson won the presidency over John Adams, with free speech being the central issue. Now, free speech is once again at stake, as a Harris-Walz administration could be detrimental to individual rights.

The Brazilian Supreme Court upheld a ban on X Monday due to the company's failure to identify a legal representative in Brazil before the court-imposed deadline expired.

Over the weekend, Brazilian Judge Alexandre de Moraes made the decision to ban the platform due to posts that he deemed threatened Brazil's democracy.

Brazil's President Luiz Inácio Lula da Silva backed de Moraes’ decision.

In the U.S, concerns of censorship are mounting, particularly under the Biden-Harris administration, as Brazil's free speech battle continues.

Kamala Harris, prior to becoming vice president, stated on CNN that she believed former President Trump had lost his right to use Twitter, supporting his ban on the social media platform.

Twitter, a private corporation, has terms of use. According to Harris, and most people, including members of Congress who he has threatened, Twitter has lost its privileges and should be taken down. Harris believes that social media sites have a responsibility to understand their power.

FOX Business' Stepheny Price contributed to this report.