Federal Separation of Powers
The Constitution of the United States establishes three different branches of government, each possessing their own specific powers and limitations, which are colloquially known as checks and balances.
Article I - Establishment of the Legislative Branch of the United States, which includes Congress (House of Representatives & Senate).
Article II - Establishment of the Executive Branch which includes the President, his cabinet members and various federal agencies.
Article III - Establishment of the United States Supreme Court and its lower Federal Courts.
Example of Separation of Powers in Action
The case United States v. Alvarez (2012) provides a great example of all three branches of government acting within the scope of their powers, and the reactions that can take place between each branch of government.
Summary via Justia.com: "The Stolen Valor Act makes it a crime to falsely claim receipt of military decorations or medals and provides an enhanced penalty if the Congressional Medal of Honor is involved, 18 U. S. C. 704 (b),(c). After pleading guilty to falsely claiming that he had received the Medal of Honor, Alvarez challenged the Act as unconstitutional. The Ninth Circuit held that the Act is invalid under the First Amendment. The Supreme Court affirmed. Characterizing the law as a content-based restriction on protected speech, the Court applied the “most exacting scrutiny.” Falsity alone does not take speech outside the First Amendment. While the government’s interest in protecting the integrity of the Medal of Honor is beyond question, the First Amendment requires a direct causal link between the restriction imposed and the injury to be prevented; that link was not established. The government had no evidence that the public’s general perception of military awards is diluted by false claims or that counter-speech, such as the ridicule Alvarez received online and in the press, would not suffice to achieve its interest. The law does not represent the “least restrictive means among available, effective alternatives.” The government could likely protect the integrity of the military awards system by creating a database of Medal winners accessible and searchable. Dissenting Justices Alito, Scalia, and Thomas viewed the Act as significantly limited and necessary to the important governmental objective."
Article I: The Legislative Branch
The Legislative Branch of the United States is granted its authority by Article I of the United States Constitution. As such, the scope of Congress's power is limited to its enumerated power as they are listed within the Constitution. Of course, the answer as to what exactly those enumerated powers are has resulted in a number of Supreme Court cases over the years. Some of the specific areas where Congress's power has been decided by the Supreme Court are as follows:
Necessary and Proper Clause (Art. I, Sec. 8, Cl. 18)
Jinks v. Richland County (2003)
Commerce Clause (Art. 1, Sec. 8, Cl. 3)
Heart of Atlanta Motel, Inc. v. United States(1964); Katzenbach v. McClung (1964)
United States v. Lopez (1995); United States v. Morrison (2000)
Wickard v. Filburn (1942); Gonzales v. Raich (2005)
National Federation of Independent Business v. Sebelius (2012)
Taxing & Spending Powers (Art. I, Sec. 8, Cl. 1)
United States v. Butler (1936)
Bailey v. Drexel Furniture Co. (1922); United States v. Kahriger (1953)
New York v. United States (1992)
Article II: The Executive Branch
The Executive Branch of the United States is granted its authority by Article II of the United States Constitution.Throughout the history of the United States there has been a consistent debate over defining the extent of the Executive Branch's lawmaking ability under the Constitution. For example, to what extent can the President act independent from Congressional authority?
Acting With / Without Congressional Authority
Youngstown Sheet & Tube Company v. Sawyer (1952)
Congressional Delegation of Powers
Another question involves Congress's authority to delegate powers to the Executive Branch. The Court has approached this question in two different ways, a Formalist approach (by taking the literal text of the Constitution and strictly adhering to the separate of powers doctrine), and the Functional approach (by looking beyond a strict interpretation in order to allow for more flexibility).
(1) Formalist Approach
Clinton v. City of New York (1998)
(2) Functional Approach
Mistretta v. United States (1989)