A shareholder with the American crypto firm Circle Internet Group sued President Donald Trump on Thursday alleging he illegally profited from deals with the United Arab Emirates.

The lawsuit claims that billions of dollars in digital currency purchases were routed through the Trump family crypto firm, World Liberty Financial, in violation of the Constitution’s foreign emoluments clause.

“The President brazenly violated the Constitution in order to enrich himself, his family, and his business, at a direct cost to Circle,” plaintiff and Circle shareholder J. Benjamin Greenberg said in a statement announcing the lawsuit. “He needs to be held accountable.”

The Constitution’s foreign emoluments clause bars anyone holding federal…