How did Franklin D. Roosevelt use his presidential power to institute the Reorganization Act of 1939?

He used his influence as Chief Legislator to persuade Congress to pass the Act.

Explanation:

The Reorganization of Act of 1939 granted the President of the U. S two important things;

• The power to hire extra confidential staff

• The authority to reorganize the executive branch

Though this move was met with opposition, the Act ensured that the president had the power to hire 6 assistants, propose any reorganization plans and make economy in the government priority.

Best wishes!