Elon Musk has taken his dispute with the Securities and Exchange Commission (SEC) to the US Supreme Court, seeking to annul an agreement requiring his Tesla-related posts on his social media platform to undergo prior screening.

In a filed appeal on Thursday, Musk argued that the agreement violates his constitutional right to free speech as outlined in the First Amendment. He asserted that this provision amounts to a form of censorship prohibited by law.

The Tesla CEO's move comes after a federal appeals court ruled against him in May, supporting a lower-court decision and dismissing Musk's claims. The court found no evidence supporting Musk's argument that the SEC had conducted unjust investigations into his protected speech.

Musk's clash with the SEC stems from a 2018 tweet where he claimed to have secured funding to take Tesla private, leading to a surge in the company's stock. The SEC sued Musk and Tesla, alleging that they had misled shareholders. The subsequent settlement involved each party paying a $20 million fine and an agreement that Musk's Tesla-related tweets would be reviewed by an in-house lawyer before posting.

The case at the Supreme Court, titled Musk v. Securities and Exchange Commission, is awaiting a docket number.

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