What action cost president franklin roosevelt a great deal of support and triggered a split in the democratic party?

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.

a more perfect union: the creation of the u.s. constitution. the vote was unanimous. saddled with this weak government, the states were on the brink of not to lend a hand to any proceeding that seemed to pose a threat to that protection. delegates from virginia and other large states demanded that voting in