- Article 2, Section 1, Clause 7 specifies that the President may not receive money from any state or federal government aside from his salary.
- Article 1, Section 9, Clause 8 specifies that no members of government may be compensated by a foreign state without the approval of Congress.
Congressional Democrats have sued Trump for a failure to allow Congress to weigh in on foreign payments and implications under the Foreign Emoluments Clause.