Final answer:
The president's role as Chief Executive is to enforce laws by overseeing their implementation, issuing executive orders, and managing the executive branch departments.
Step-by-step explanation:
The role of the president when enforcing laws is as the Chief Executive. This responsibility entails overseeing the implementation of laws passed by Congress and entails various functions to ensure these laws are executed properly. As per the Constitution, the president is tasked to 'take Care that the Laws be faithfully executed' and oversees the various departments within the executive branch of the government. In addition, the president has the authority to issue executive orders, which serve as tools to interpret and carry out legislation, and can also demand that officers of the executive branch justify their actions. Other key aspects of this role include the appointment of members to the executive cabinet with Senate approval, setting foreign policy, and acting as the civilian head of the armed forces.