(Bloomberg) — Donald Trump and World Liberty Financial, the cryptocurrency venture he co-founded with his sons, were sued by a shareholder in a rival crypto firm over claims the president illegally profited from his office in violation of the US Constitution.

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Benjamin Greenberg, a shareholder in Circle Internet Group Inc., claims illegal competition from World Liberty has harmed him and other Circle investors financially.

The suit claims Trump violated the Foreign Emoluments Clause, a provision of the US Constitution that bars presidents from taking payments from foreign governments without the approval of Congress, in two World Liberty transactions with the United…