The President has many roles, a few being chief diplomat, chief executive, commander in chief, and chief legislator. He or she is also the chief of party and chief citizen. Chief of State-the ceremonial head of the government and the symbol of national unity. 2  Chief Executive-which is responsible to see that the laws of the federal government are enforced. 3  Chief Legislator-seeks to influence the lawmaking process, signs bills into law or vetoes them.