Lawyers representing nearly 200 Democrats in Congress plan to argue in federal court Thursday that President Donald Trump is violating the Constitution by accepting foreign state favors without first seeking congressional approval.

The case argues that the president has received foreign government favors, such as Chinese government trademarks for his companies, payments for hotel room stays and event space rentals by representatives of Saudi Arabia and Kuwait, and proceeds from Chinese or Emirati-linked government purchases of office space in Trump Tower.

Ethics experts say the constitutional emoluments clause was created by the Founding Fathers to ensure that government officials act with the interests of the American public in mind instead of their own pocketbooks. Since then, it has been applied to the lowest of government of officials up to the president without a court challenge.

"This argument on Thursday will essentially put to the test the proposition that no one is above the law, not even the president," said Sen. Richard Blumenthal, a Connecticut Democrat who is leading the effort. "He's thumbed his nose at the plain text and in doing so he's thumbed his nose at the American people."

Unlike prior presidents, Trump chose not to divest from his assets and he remains the owner of the Trump Organization, a sprawling business empire with 550 entities in more than 20 countries that include branded hotels, golf courses, licensing deals and other interests. His Washington, D.C., hotel just steps from the White House has become a magnet for foreign governments, including groups tied to Kuwait, Bahrain, Turkey, Malaysia and Saudi Arabia.