Respuesta :

The main action that cost president FDR to lose support from the Democratic Party and triggered a split in the organizatioin was the fact of challenging conservatives within the party, these politicians on the conservative side had angered FDR by opposing the addition of new justice to the US Supreme Court and refusing to along with the executive branch reorganization. His attempt to establish a truly liberal Democratic Party to rescue the New Deal failed an end up in embarrassment and humiliation to him, loosing a great deal of support from the democratic party.

Answer:

court-packing plan

Explanation:

What is known as the court-packing plan is the Judicial Procedures Reform Bill of 1937. This initiative was proposed by Franklin Delano Roosevelt, and it was an attempt to add more justices to the Supreme Court. The action was viewed by many as an attempt to add more justices who would favor his policies, and this was not popular. Many Democrats opposed it, and this caused a split in the party.