Final answer:
Congress may have been concerned with the actions of Presidents Hoover, Coolidge, and Franklin Roosevelt, with particular attention to Roosevelt's extensive use of executive orders to centralize legislative power, causing tension about the separation of powers and potential presidential overreach.
Step-by-step explanation:
Congress may have taken exception to the actions of Presidents Hoover, Coolidge, and Franklin Roosevelt for several reasons, but focusing on President Franklin D. Roosevelt, one significant reason was that he was employing executive orders to put legislative power in presidential hands. Roosevelt's use of executive orders greatly expanded during his time in office due to the urgent economic circumstances of the Great Depression and later the exigencies of World War II.
However, this expansion of power was controversial as it shifted the balance of power towards the executive branch, leading to concerns about presidential overreach and the potential undermining of the separation of powers doctrine essential to the functioning of a democratic government.