What was the “court-packing” plan? a. a plan devised by fdr to add new justices to the supreme court who would rule in favor of new deal legislation b. a plan devised by the chief justice of the supreme court to encourage justices who were over seventy years of age to retire c. a plan devised by enemies of fdr to add justices to the supreme court who would rule against new deal legislation d. a plan devised by speaker of the house to reduce the number of supreme court justices from nine to