The President of the United States is in charge of which branch of government?

Why this is the answer

The executive branch is the President's branch. Article II of the Constitution opens by placing the executive power in a President, and later charges that President to take care that the laws be faithfully executed. That phrase explains the name: to execute a law is to carry it out. Congress writes federal laws and the courts review them, but it falls to the executive branch to enforce them. The President does not do this alone. The branch also includes the Vice President, the Cabinet, and the executive departments and agencies. Each department contains smaller agencies. The FBI is part of the Department of Justice, and USCIS itself is part of the Department of Homeland Security, which makes the agency behind this test one piece of the branch the question is about. The Founders were wary of an executive with unchecked authority. The study guide says they were afraid that a President with too much power would be above the law and could become a king or queen. Their answer was the rule of law: in the United States no one is above the law, and that includes the President. USCIS lists one answer: "executive branch." The usual mistake is confusing the President's branch with Congress because the President signs bills. Signing comes at the end of lawmaking, but by then the bill has already been written and passed by a majority in both the House and the Senate; the President's main job, enforcing the law, begins once it exists. The other wrong turn is the judicial branch, which belongs to the Supreme Court and the federal courts. Cabinet members lead the departments and advise the President, but they work inside the executive branch rather than forming a branch of their own. If you hear "in charge of which branch," think of the word execute and the answer follows.