The solicitor general argues the federal government's cases before the Supreme Court

The Department of Justice is led by the US attorney general

The attorney general acts as the nation's top law enforcement official—managing all Department of Justice activities, overseeing US attorneys, and advising the president and federal agencies on legal issues that influence policy and enforcement.

Early attorneys general worked alone and often kept private law practices.

The Department of Justice is the nation's chief law enforcement and legal agency

Established in 1870, the US Department of Justice enforces federal law, safeguards civil rights, and represents the United States in court—serving as the central authority for federal prosecutions and legal advice across all executive agencies.

Explore the biographies and official portraits of every US attorney general since 1789.

Meet the 9 justices currently serving on the US Supreme Court.

Immigration courts are part of the DOJ, not the judicial branch

Unlike federal courts, immigration courts operate under the DOJ's Executive Office for Immigration Review—meaning immigration judges are DOJ employees, not independent judicial officers, and their decisions can be reviewed and overturned by the attorney general.

The Department of Justice spent $44B in 2024.

Courts referee federalism disputes between Congress and the states

Modern federalism is primarily worked out through litigation. The Supreme Court decides disputes in written opinions that explain when federal law preempts state authority, how far Congress's powers extend, and when states may resist.

The Supreme Court term runs from October to June

The Supreme Court of the United States begins each term on the first Monday in October, alternating two-week sittings and recesses, hearing arguments mainly on Mondays through Wednesdays, and deciding which of thousands of petitions will receive full review.

The Department of Justice was formally established in 1870

Passed by Congress in 1870, the Act to Establish the Department of Justice centralized federal legal work under the attorney general, bringing together US attorneys and marshals into a single department.

A court designed to be the least powerful branch of government became one of the most influential institutions in America.

See how a US Supreme Court justice is nominated and confirmed

A president nominates a Supreme Court justice, the Senate Judiciary Committee conducts public hearings and background vetting, and the full Senate debates and votes on confirmation—a process explained step by step in this video.

Watch 2 Supreme Court justices debate how the Constitution should be interpreted

In a 2009 conversation, former Justices Antonin Scalia and Stephen G. Breyer lay out competing approaches to constitutional interpretation: Scalia's textualist, strict constructionism versus Breyer's evolutionary view of the Constitution in practice.

Explore the most impactful Supreme Court cases in US history

Browse by constitutional topic to explore key rulings, their historical impact, and the legal principles they established. Each case includes a summary of the decision, along with notable excerpts from majority and dissenting opinions.

Explore biographies of every justice who has served on the Supreme Court

This archive traces the whole history of the Supreme Court of the United States through detailed biographies of every justice, outlining their backgrounds, appointments, and the legal eras and decisions they helped shape.

The 2025-26 Supreme Court docket is poised to reshape presidential power

As the Supreme Court begins a new term, several major cases could define the scope of presidential authority. The court may rule on President Trump's efforts to control state National Guard units, fire independent officials, impose tariffs, and cut congressionally mandated federal spending.

Grand juries investigate crimes and decide whether the government has enough evidence to charge someone

Unlike trial juries, which determine guilt, grand juries decide whether there is probable cause to bring charges at all. If they find enough evidence, they issue a formal indictment. Federal grand juries are enshrined in the Fifth Amendment of the US Constitution.

US marshals were the first federal law enforcement officers

Established in 1789, US marshals carried out court orders, served subpoenas, made arrests, and collected fines—serving as the federal government's main law enforcement agency across the states for nearly a century before the creation of the DOJ.

Read SCOTUSblog for daily, nonpartisan coverage of the US Supreme Court

Founded in 2002, SCOTUSblog offers expert analysis from lawyers, professors, and journalists. The blog provides transparent, unbiased explanations of significant cases, real-time updates on decisions, and insights into court nominations and trends.

See how the executive branch of the US government works

The executive branch enforces federal laws and is led by the president, who serves as head of state, commander in chief, and chief diplomat. Supported by the vice president, Cabinet, and around 4 million federal employees, it carries out laws through 15 departments and dozens of agencies.

The FBI is the largest agency within the Department of Justice

The Federal Bureau of Investigation is the DOJ's largest component, leading national efforts to fight terrorism, cybercrime, organized crime, and corruption. It has roughly 38,000 employees and functions as both a domestic intelligence agency and the federal government's main investigative body.

John Marshall advanced federal supremacy and judicial review

Marshall's jurisprudence emphasized that the Constitution is the supreme law of the land, enforceable by an independent judiciary. Through his court's decisions, he affirmed judicial review, broad implied powers for Congress, and federal authority to override conflicting state laws.

The 10th Amendment affirms that most undelegated powers remain with the states

Adopted to reassure skeptics of an overly powerful federal government, the amendment was meant to curb federal overreach and preserve state control over most everyday governance decisions.

The Supreme Court has greatly expanded executive power in recent years

In Trump v. United States, the court ruled that a former president enjoys absolute immunity for "official acts" in his constitutional core powers. In Trump v. CASA, Inc., the court limited federal courts' ability to block executive enforcement through nationwide injunctions—decisions that shifted power toward the executive branch.

John Marshall presided over more than 1,100 Supreme Court decisions

During his 34-year tenure, the Marshall court issued 1,129 decisions, including 1,042 unanimous rulings. Marshall authored more than 500 majority opinions—over half of the court's total output during his tenure as chief justice.

The supremacy clause establishes federal law as the highest authority

The supremacy clause states that the United States Constitution and federal laws enacted under it supersede conflicting state laws, ensuring national authority prevails when federal and state governments disagree.

John Marshall inherited a marginal and largely inactive Supreme Court

By 1801, the court had little institutional authority or public standing. Its first three chief justices served only 11 years combined, and in its first decade, the court decided only 63 cases—none of which struck down a federal or state law.

The powers of the judicial branch have expanded since the nation's founding

Initially, the Supreme Court was seen as the weakest branch, lacking "the power of the sword or the purse," as Alexander Hamilton noted in *Federalist No. 78*. This podcast explores the political conflicts and pivotal decisions that transformed the court into the powerful constitutional authority it is today.

State supreme court justices almost never serve for life

Unlike US Supreme Court justices, 99% of state supreme court justices face term limits, reselection, or mandatory retirement ages. Since 1970, they've averaged 13 years on the bench—half the tenure of their federal counterparts.

President Trump has changed decades-long norms for the DOJ during his second term

The Trump administration made changes to ethics oversight, instructed US attorneys to coordinate with the White House, dismissed cases, and overhauled the career hiring process in the Civil Rights division. The administration asserts these changes were justified and aimed to end what they claim as the weaponization of government.

John Marshall strengthened the Supreme Court and national authority

As chief justice, John Marshall established the principle of judicial review. He reinforced federal supremacy in key cases, defining the Supreme Court as a powerful arbiter between states and the national government under the US federal system.

Supreme Court justices serve for life

The Constitution grants Supreme Court justices lifetime appointments to shield them from electoral politics and outside pressure, a design meant to preserve judicial independence but now widely debated due to longer lifespans and partisan balances of the court.

The vast majority of federal criminal cases never reach a jury.

In fiscal year 2022, nearly 90% of federal defendants pleaded guilty, and another 8% had their cases dismissed. This means just 2% went to trial at all, making a trial by jury a rare outcome in the modern federal court system.

See who appointed the Supreme Court's 116 throughout its history.

The Tenth Amendment reserves all powers not granted to the federal government to the states or the people

Any powers not delegated to the federal government by the Constitution are reserved to the states or to the people. It has been cited in legal battles over healthcare, marijuana, and environmental regulation.

The Senate must approve top presidential appointments

Under Article II of the Constitution, the United States Senate provides "advice and consent" on presidential nominees. This resource displays the outcome of every Cabinet nomination since Jimmy Carter's presidency and every Supreme Court nomination in US history.

The separation of powers is a pivotal component of the US Constitution

Explore how the three branches interact through the Supreme Court case of US v. Alvarez. The Supreme Court first struck down a law, then Congress and the president later revised it—illustrating how judicial review can reshape legislation and executive action.

Supreme Court Justice Louis Brandeis once called states 'laboratories of democracy'

Louis Brandeis argued that federalism allows states to experiment with new policies without committing the entire nation, thereby allowing successful ideas to spread while limiting the risks of failure.

Marshall was briefly secretary of state and chief justice at the same time

Appointed secretary of state by John Adams in 1800, Marshall oversaw foreign policy during disputes with France, Britain, and Spain, including support for the Convention of 1800. For about a month in early 1801, he served as both secretary of state and chief justice.

Watch scholars debate Supreme Court term limits

In a debate from 2017, legal scholars from across the political spectrum spar over whether justices should serve fixed terms. The discussion highlights bipartisan concerns about judicial independence, accountability, and the risks of lifetime tenure.

Most Americans support age limits for justices, elected officials

As members of Congress and Supreme Court justices continue to serve at an average age far older than in the past, polls show a majority of Americans favor setting an age limit for these roles. Roughly 79% support caps for federal elected officials, and 74% favor such limits for Supreme Court justices. A constitutional amendment would be required.

Grand juries were once considered a formality, but that may no longer be the case

New York's former chief judge famously said a prosecutor could get a grand jury to "indict a ham sandwich," showing how rarely a grand jury refused. However, recent cases in which prosecutors failed to secure an indictment during the second Trump administration are challenging that assumption.

The early DOJ led the first major federal civil rights prosecutions

During Reconstruction, the newly formed Department of Justice prosecuted Ku Klux Klan violence in the South—securing over 1,000 indictments and more than 500 convictions by 1873 in defense of newly established civil rights protections.

The Supreme Court has never definitively settled federal war powers

Despite more than two centuries of conflict over war powers, the Supreme Court has consistently avoided defining the precise boundary between congressional and executive authority, leaving that boundary to be contested by the political branches.

Photography and video are prohibited in the Supreme Court—but artists are not

Because cameras are banned inside the Supreme Court of the United States, courtroom artists document proceedings through sketches. This exhibition features works from 1964 to today, capturing the human drama of landmark cases and shaping how Americans visualize justice.

In the US, any court can rule on constitutionality—unlike in most other countries

In the American system, known as diffuse judicial review, federal and state courts at every level may assess whether laws comply with the Constitution, and their decisions are ultimately reviewable by the Supreme Court. Many other democracies, by contrast, reserve constitutional review to specialized constitutional courts.

The Civil Rights Act expanded the Department of Justice's enforcement powers

The 1964 bill empowered the DOJ's Civil Rights Division to challenge segregation, protect voting rights, and prosecute discrimination, thereby expanding its role in defending civil rights.

The DEA enforces federal drug laws under the Department of Justice

Established in 1973, the Drug Enforcement Administration directs federal efforts to fight illegal drug trafficking, oversee controlled substances, and dismantle large narcotics networks both within the United States and internationally.

Compare how justice ministries and courts are structured around the world

The Federal Judicial Center's "Judiciaries Worldwide" series provides clear and accessible comparisons of how various countries organize their justice ministries, prosecutors, courts, and judicial councils—emphasizing global models of independence, oversight, and institutional structure.

Explore the nearly 1,000 laws, regulations, and provisions the court has held unconstitutional since Marbury v. Madison

Over more than two centuries, the Supreme Court has struck down nearly 1,000 federal, state, and local measures—exercising its authority to invalidate laws that conflict with the Constitution and shaping civil rights, the separation of powers, and the scope of government authority.