President Donald Trump was sued in federal court Wednesday to stop him from making money off a new, paid service at his Truth Social company offering early, exclusive access to his posts on US policy.

The lawsuit alleges the service offering paying customers sneak peeks of his posts about US policy on war, tariffs and other issues violates the Constitution and that official announcements should be made available to everyone at the same time. The new subscription service rolled out earlier this month is charging Wall Street firms as much as US$100,000 a month to trade off the market-moving posts before others.

“A president selling priority access to news he himself generates for the benefit of a private company he controls is so blatantly corrupt and unconstitutional that it would have been hard to even fathom just a few years ago,” said Seth Stern, chief of advocacy at the Freedom of the Press Foundation, a plaintiff in the case along with news outlet The Intercept.