Final answer:
The phrase means that the president is responsible for overseeing the implementation of laws and ensuring their proper execution.
Step-by-step explanation:
The phrase "he shall take Care that the Laws be faithfully executed" in the Constitution means that the president is responsible for ensuring that laws are implemented and carried out properly. This gives the president the power to oversee the execution of laws and issue executive orders to interpret and enforce legislation. The president also has the authority to supervise other officers of the executive branch and hold them accountable for their actions.