Checks and Balances is the answer you may be looking for.
There are a few, actually:
1. The customary 2 terms of office.
2. Executive authority in matters of foreign policy.
3. Exercising prerogative in the case of national emergency (the Whiskey Rebellion).
A. Medicare Act
The Medicare Act was enacted under President Lyndon Johnson in the 1960's not during the New Deal.
answer because it is a cemetery