Title: Article Two of the United States Constitution
Content:  Article Two of the United States Constitution establishes the executive branch of the federal government, which carries out and enforces federal laws. Article Two vests the power of the executive branch in the office of the president of the United States, lays out the procedures for electing and removing the president, and establishes the president's powers and responsibilities. Section 1 of Article Two establishes the positions of the president and the vice president, and sets the term of both offices at four years. Section 1's Vesting Clause declares that the executive power of the federal government is vested in the president and, along with the Vesting Clauses of Article One and Article Three, establishes the 
Title: Chapter II of the Constitution of Australia
Content:  Chapter II of the Constitution of Australia establishes the executive branch of the Government of Australia. It provides for the exercise of executive power by the Governor-General advised by a Federal Executive Council.
Title: Federal government of the United States
Content:  The executive branch is established in Article Two of the United States Constitution, which vests executive power in a president of the United States. The president is both the head of state (performing ceremonial functions) and the head of government (the chief executive). The Constitution directs the president to "take care that the laws be faithfully executed" and requires the president to swear or affirm to "preserve, protect and defend the Constitution of the United States." Legal scholars William P. Marshall and Saikrishna B. Prakash write of the Clause: "the President may neither breach federal law nor order his or her subordinates to do so, for defiance cannot be considered faithful execution. The 
Title: Malolos Constitution
Content:  executive branch. In other words, there are Question Periods allotted to each member of the executive branch. While Title VII, Article 56 stated that executive power resides in the President of the Republic, who shall exercise it through his Secretaries convened in a Council of government that is led by the President of the council of government. The Constitution also stated in Title IX, Article 75 that the secretaries of government shall be held jointly responsible by the National Assembly for the general policies of Government, and individually for their personal actions like in most parliamentary systems. The parliamentary terminologies used in this constitution are different to the more usual Anglo-Saxon titles. Terms like Parliament, Cabinet, Prime Minister, Minister, and Member of Parliament (or MP) are replaced with Assembly, Council of Government, President of the Council of Government, Secretary, and Representative, respectively.
Title: Executive order
Content:  The United States Constitution does not have a provision that explicitly permits the use of executive orders. ArticleII, Section1, Clause1 of the Constitution simply states: "The executive Power shall be vested in a President of the United States of America." Sections2 and3 describe the various powers and duties of the president, including "he shall take Care that the Laws be faithfully executed". The U.S. Supreme Court has held that all executive orders from the president of the United States must be supported by the Constitution, whether from a clause granting specific power, or by Congress delegating such to the executive branch. Specifically, such orders must be rooted in Article II of the US Constitution or enacted by the Congress in statutes. Attempts to block such orders have been successful at times, when such orders either exceeded the authority of the President or could be better handled through legislation. The Office of the Federal Register is responsible for assigning the executive order a sequential number, after receipt of the signed original from the White House and printing the text of the executive order in the daily Federal Register and eventually in Title3 of the Code of Federal Regulations.
Title: Office of profit
Content:  The U.S. Constitution prohibits a Member of Congress from being appointed to an executive office under two circumstances: if the executive office was created during that Member's term in Congress, or if the compensation for that executive office was increased during that Member's term in Congress (but see the Saxbe fix). The U.S. Constitution also prohibits an executive officer from being a Member of Congress. Specifically, Article I, Section 6, Clause 2 provides: "No Senator or Representative shall, during the Time for which he was elected, be appointed to any civil Office under the Authority of the United States, which shall have been created, or the 
Title: Presidential reorganization authority
Content:  The U.S. Constitution establishes an Executive Branch of government, It is, therefore, left to normal statute law to establish inferior offices and agencies, under the President, by which the government can operate. Despite the broad authority granted by the United States Constitution to the president, he does not have "unilateral and unrestrained authority over the Executive Branch" and "congressional action is required to create Executive Branch departments, to fund them, to determine the nature and scope of their duties and to confirm the appointment of their top leaders". While the president manages the conduct of executive branch offices, "it is Congress, not the President, that establishes departments and agencies, and to whatever degree it chooses, the internal organization of agencies".
Title: Article Two of the United States Constitution
Content:  "The executive Power shall be vested in a President of the United States of America. He shall hold his Office during the Term of four Years, and, together with the Vice President, chosen for the same Term, be elected, as follows:"  Section 1 begins with a vesting clause that confers federal executive power upon the president. Similar clauses are found in Article I and Article III; the former bestows federal legislative power exclusively to Congress, and the latter grants judicial power solely to the Supreme Court, and other federal courts established by law. These three articles together secure a separation of powers among the three branches 
Title: Dual mandate
Content:  The United States Constitution prohibits members of the Senate or House from holding positions within the Executive Branch (Art. I, Sec. 6, cl. 2), and limits the president to his salary as chief executive, saying he may not "receive... any other Emolument from the United States, or any of them" (Art. II, Sec. 1, cl. 7). However, the Constitution places no restrictions that would prevent state or local office holders from simultaneously holding office in any branch of the federal government. Historically, the U.S. inherited many basic political traditions from Great Britain, which in the eighteenth century tolerated several different forms of 
Title: Legacy of George Washington
Content:  As the first President of the United States, George Washington developed lasting traditions that helped shape the role of the executive branch. Washington knew he needed to establish an effective executive role, but also understood the importance of the sovereignty of the individual and limited government. It was highly important to himself and the nation that the executive bear no resemblance to a monarchy. The Constitution was created for such purpose and divided the power of government into the three distinct branches. Article II of the United States Constitution outlines the powers of the executive branch, but is written with ambiguity. Therefore, Washington had to forge the institution necessary to carry out the president's constitutional powers. In doing so, precedents emerged that are notable 

Question: where in the constitution is the executive branch referenced?
Answer: Article Two.