Answer:
Former president Truman's argument is that Congress, not the president, should run the executive branch. D. "Congress, not the president, should run the executive branch."
Step-by-step explanation:
In his speech, Truman emphasized the importance of maintaining the separation of powers between the branches of government, and he argued that Congress should not try to "run the agencies of government for the president." Instead, Congress should exercise its own powers, including its law-making powers, and allow the president to exercise the powers granted to him or her by the Constitution. This would help to ensure "orderly government" and prevent the legislative and executive branches from encroaching on each other's powers.