"This 1937 cartoon is criticizing President Franklin D. Roosevelt’s plan to (4) increase the number of justices on the Supreme Court
The 1937 Supreme Court packing plan proposed by President Franklin D. Roosevelt aimed to expand the size of the Supreme Court from nine justices to as many as fifteen.
This would allow Roosevelt to appoint more justices sympathetic to his New Deal policies, which were being struck down by the conservative-majority court.
The cartoon depicts Roosevelt as a puppeteer controlling the Supreme Court, implying that he would use his increased power to manipulate the court's rulings.