Why did roosevelt feel the need to propose expanding the number of justices on the supreme court? a. the supreme court have been striking down in new deal programs as unconstitutional b. the supreme court have been struggling under a heavy workload c. the supreme court didn't consider his election valid d. the supreme court was refusing to hear new cases.

The answer is letter A.  Before Roosevelt introduced this plan, the Supreme Court have rejected many elements of his New Deal plan because the authority held by the Executive was too much and considered unconstitutional.  He thought that by adding more justices to the Supreme Court, it would protect his legislation.  Still it was rejected by both liberals and conservatives.