WASHINGTON (AP) — The Supreme Court on Monday rejected an appeal from Elon Musk over a settlement with securities regulators that requires him to get approval in advance of some tweets that relate to Tesla, the electric vehicle company he leads.

The justices did not comment in leaving in place lower-court rulings against Musk, who complained that the requirement amounts to “prior restraint” on his speech in violation of the First Amendment.

The case stems from tweets Musk posted in 2018 in which he claimed he had secured funding to take Tesla private. The tweets caused the company’s share price to jump and led to a temporary halt in trading.

The settlement with the Securities and Exchange Commission included a requirement that his tweets be approved first by a Tesla attorney. It also called for Musk and Tesla to pay civil fines over the tweets in which Musk said he had “funding secured” to take Tesla private at $420 per share.