Final answer:
The president of the United States does indeed receive a salary of $400,000 as a factual claim, which is confirmed by the Constitution and cannot be changed during their term.
Step-by-step explanation:
The statement that the president of the United States receives a salary of $400,000 is indeed correct and represents a factual claim. According to the Constitution, specifically in Section 1 Clause 7, the presidential salary is set at a specific amount and cannot be changed during the President's term in office. Additionally, the President is provided with a $50,000 annual expense account. Historical instances, such as the scandal following the Forty-Second Congress' decision to issue retroactive salary raises, highlight the public sensitivity to changes in officials' salaries and demonstrate the importance of this constitutional clause to ensure a stable presidential compensation.