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Principles

The constitutional ideas and legal doctrines behind American government, from separation of powers to judicial review. · 68 entries

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Unitary Executive Theory
The view that the President alone controls the entire executive branch, and the long fight over how far that control extends
Separation of Powers
Why the Constitution divides federal power among three branches, and how courts police the lines between them
Tribal Sovereignty
The inherent self-government of Native nations, the third sovereign in the American system
The Rule of Law
The principle that government acts only through law, that law binds those who govern, and that it applies equally to all
Browse by Subcategory
Constitutional Principles
17 entries
Separation of powers, federalism, checks and balances, and the structural ideas written into the Constitution.
Executive Power
9 entries
The theories and clauses that define how much a President can do alone.
The Administrative State
11 entries
Administrative law, agency deference, nondelegation, and the debate over unelected rulemakers.
Judicial Concepts
10 entries
Judicial independence, life tenure, originalism, restraint, and the doctrines that govern what courts will decide.
Federalism & States
11 entries
Preemption, states rights, tribal sovereignty, and the shifting line between national and state power.
Political Concepts
10 entries
Divided government, gridlock, lobbying, polarization, and the working vocabulary of American politics.
All Principles (A–Z) A–Z By date
A B C D E F G H I J L M N O P R S T U

A

The Administrative State Reorganizing
The hundreds of federal agencies that write rules, enforce them, and decide disputes, sometimes called the fourth branch
Agency Adjudication
How federal agencies decide individual cases, from benefits claims and immigration hearings to enforcement actions, outside the regular federal courts
The Appointments Clause
The Article II provision dividing appointment power between the President and the Senate, and letting Congress assign inferior officers to the President, the courts, or department heads

B

Bicameralism
Why Congress has two chambers, one based on population and one on equal state representation
The Bully Pulpit
Theodore Roosevelt's phrase for the presidency's platform to speak directly to the public, and the practice of going public to pressure Congress and shape opinion

C

Checks and Balances
The specific tools each branch has to restrain the others, and why the system depends on each branch using them
Commander-in-Chief Power
The President's authority over the armed forces, civilian control of the military, and the limits courts and Congress have set
The Commerce Clause
Congress's power to regulate commerce with foreign nations, among the states, and with Indian tribes, the basis for much of modern federal law
Consent of the Governed
The idea, stated in the Declaration of Independence, that governments derive their just powers from the consent of the people they govern
Cost-Benefit Analysis
The practice, required by executive order since 1981, of weighing the expected costs and benefits of major federal regulations before they are issued
The Counter-Majoritarian Difficulty
Alexander Bickel's 1962 name for the tension between judicial review by unelected judges and democratic government, and the many attempts to resolve it
Court Packing
Changing the number of Supreme Court justices to alter its majority, most famously attempted by Franklin Roosevelt in 1937, and the wider debate over Supreme Court reform

D

The Deep State
A contested term for career officials, especially in intelligence and law enforcement, said to resist or work against elected leaders, and the debate over bureaucratic power it reflects
Deregulation
The reduction or removal of government rules on industries and the economy, from the bipartisan transportation reforms of the late 1970s to the regulatory budgets of 2017 and 2025
Divided Government
When one party holds the presidency and the other controls at least one chamber of Congress, the usual condition of American government since 1969
Dual vs. Cooperative Federalism
Two models of how national and state governments share power: separate spheres, like a layer cake, or intertwined programs, like a marble cake
Due Process
The constitutional guarantee, in the Fifth and Fourteenth Amendments, that no person shall be deprived of life, liberty, or property without due process of law

E

Enumerated and Implied Powers
A federal government of limited, listed powers, and the clauses that have allowed those powers to grow
Executive Privilege
The President's qualified right to keep internal communications confidential from Congress and the courts

F

Federal Preemption
When federal law overrides state law, and the three ways it happens
Federalism
How power is divided between the national government and the states, and how that balance has shifted
The Fourth Estate
The press as an informal check on government, protected by the First Amendment and shaped by landmark cases, investigative reporting, and changes in the news business
Full Faith and Credit
The Article IV requirement that each state respect the public acts, records, and court judgments of every other state

G

Gridlock
The inability of Congress and the President to act on major national issues, its causes in polarization and institutional rules, and the debate over whether it is a flaw or a feature
The Guarantee Clause
The Article IV promise that the United States will guarantee every state a republican form of government and protect each against invasion and domestic violence

H

Home Rule
The authority of cities and counties to govern their own local affairs, granted by state constitutions and laws, as opposed to Dillon's Rule, and its special form in Washington, D.C.

I

The Imperial Presidency
A term popularized in 1973 for the growth of presidential power beyond constitutional limits, especially in war and secrecy, and the recurring debate it named
Incumbency Advantage
The electoral edge enjoyed by officeholders seeking reelection, which makes most members of Congress very hard to defeat
Independent Agencies and Removal Protection
How Congress shields some agency leaders from presidential firing, and the Supreme Court cases testing whether it can
Inherent Executive Power
The claim that the Vesting Clause gives the President powers beyond those listed in Article II, and the long debate over how far such unwritten authority extends
Inherent Powers
Powers the national government holds because it is a sovereign nation, especially in foreign affairs and immigration, even where the Constitution does not list them
Interstate Compacts
Binding agreements between states, often approved by Congress, that create shared agencies and rules for rivers, ports, transit, licensing, and other cross-border matters

J

Judicial Activism and Restraint
Competing descriptions of how readily judges should overturn the decisions of elected officials, and labels both political sides apply to rulings they oppose
Judicial Independence
How the Constitution protects judges from political pressure, and the recurring fights over that protection
Jurisdiction Stripping
Congress's use of its power over federal court jurisdiction to remove certain kinds of cases from the courts, and the constitutional limits on doing so
Justiciability
The set of doctrines, including standing, ripeness, mootness, and the bar on advisory opinions, that determine whether a federal court may decide a dispute at all

L

Life Tenure
Why federal judges serve for life, how tenures have lengthened, and proposals for term limits
Limited Government
The principle that government has only the powers the people grant it, bounded by a written constitution, enumerated powers, and protected rights
Lobbying and Interest Groups
How organized groups try to influence government decisions, the constitutional right to petition behind it, and the disclosure laws that regulate it

M

Major Questions Doctrine
The rule that agencies need clear congressional authorization for policies of vast economic or political significance
Majority Rule and Minority Rights
The balance in American government between letting majorities decide and protecting individuals and minorities from majority overreach

N

The Necessary and Proper Clause
The final clause of Congress's enumerated powers, which lets Congress pass all laws necessary and proper for carrying out its other powers, the source of most implied federal power
The Nondelegation Doctrine
The principle that Congress may not hand its lawmaking power to agencies or others, enforced by requiring that delegations come with an intelligible principle
Nullification
The theory that a state may declare a federal law unconstitutional and void within its borders, tested in the 1832 crisis and consistently rejected by the courts

O

Originalism and the Living Constitution
The two leading approaches to interpreting the Constitution: reading it by its meaning when adopted, or as a document whose application evolves with society

P

Partisanship and Polarization
The growing ideological distance between the two major parties since the 1970s, in Congress and among voters, and its causes and consequences
Political Question Doctrine
The questions federal courts refuse to decide because the Constitution leaves them to Congress or the President
Popular Sovereignty
The principle that government's authority comes from the people, and how the circle of "the people" has widened
Pork-Barrel Spending
Federal spending on local projects that benefits a lawmaker's home district, and the vote-trading and distributive politics that surround it
Precedent and Stare Decisis
How past decisions bind future ones, and when the Supreme Court decides to overrule itself
Presidential Immunity
The legal doctrines shielding Presidents from some civil lawsuits and criminal prosecution for official acts, defined mainly by Supreme Court decisions from 1982 to 2024

R

Regulatory Capture
The theory that regulatory agencies come to serve the industries they oversee rather than the public, and the safeguards designed to prevent it
Republicanism
The founding principle that government should rest on elected representatives accountable to the people, rather than on a monarch or on direct rule by the majority
Reserved and Concurrent Powers
How the Constitution divides authority: powers delegated to the national government, powers reserved to the states by the Tenth Amendment, and powers both may exercise
The Revolving Door
The movement of people between government jobs and lobbying or industry positions related to their public work, and the cooling-off rules that limit it
The Rule of Law
The principle that government acts only through law, that law binds those who govern, and that it applies equally to all

S

Separation of Powers
Why the Constitution divides federal power among three branches, and how courts police the lines between them
The Spoils System and Merit Reform
The nineteenth-century practice of giving government jobs to party loyalists, and the merit system that replaced it after the Pendleton Act of 1883
States' Rights
The political and constitutional argument that states hold powers the federal government may not override, invoked across American history for very different causes
Sunset Provisions
Clauses that make a law, program, or agency expire on a set date unless lawmakers act to renew it
The Supremacy Clause
The provision of Article VI making the Constitution, federal laws, and treaties the supreme law of the land, binding on state judges and overriding conflicting state law

T

The Take Care Clause
The Article II duty of the President to take care that the laws be faithfully executed, a source of both presidential authority and presidential obligation
The Taxing and Spending Power
Congress's power under Article I to lay taxes and spend for the common defense and general welfare, including the authority to attach conditions to federal funds
The Tenth Amendment in Practice
How courts have applied the Tenth Amendment, from a truism in 1941 to the anti-commandeering doctrine that today shapes sanctuary policies, sports betting, and federal programs
Think Tanks and Policy
Independent research organizations that develop policy ideas, staff administrations, and shape debates in Washington, from Brookings in 1916 to Project 2025
Tribal Sovereignty
The inherent self-government of Native nations, the third sovereign in the American system

U

Unfunded Mandates
Federal requirements that state and local governments must carry out without federal money to pay for them, and the 1995 law meant to limit them
Unitary Executive Theory
The view that the President alone controls the entire executive branch, and the long fight over how far that control extends