Which of the following best describes President Franklin Roosevelt's "Supreme Court Packing Plan"? An initiative to establish term limits for Supreme Court justices A plan to impeach Supreme Court justices who ruled against his programs A proposal to expand the number of justices on the-Supreme Court to favor Roosevelt's policies A plan to reduce the salaries of Supreme Court justices who opposed his policies

President Franklin Roosevelt's "Supreme Court Packing Plan" refers to his proposal to increase the number of justices on the Supreme Court. This was done in an attempt to obtain favorable rulings for his New Deal programs, which had been challenged by the Supreme Court. The plan was not about establishing term limits, impeaching justices, or reducing the salaries of opposing justices. Therefore, the correct answer is "A proposal to expand the number of justices on the Supreme Court to favor Roosevelt's policies".