Constitutional Accountability Center Constitutional Accountability Center

Fulfilling the progressive promise of the Constitution’s text and history

CAC is working in the courts, with elected leaders, and with legal scholars to preserve the rights and freedoms of all in America, and to protect the integrity of our judiciary.
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1963 March on Washington | Jim Wallace, Smithsonian Institution Archives

What's New at CAC

See highlights from CAC’s recent work, including media appearances, ongoing litigation, newly published scholarship, and upcoming events.

Civil and Human Rights
U.S. Court of Appeals for the Fourth Circuit

Womble v. Patel

In Womble v. Patel, the U.S. Court of Appeals for the Fourth Circuit is considering whether a North Carolina prison’s failure to provide a prisoner with a hearing-aid battery violated the Americans with Disabilities Act.
Immigration and Citizenship
U.S. Supreme Court

Genalo v. Black

In Genalo v. Black, the Supreme Court is considering whether prolonged detention without a bond hearing during immigration proceedings violates the Due Process Clause of the Fifth Amendment.
Rule of Law
U.S. Court of Appeals for the District of Columbia Circuit

Perlmutter v. Blanche

In Perlmutter v. Blanche, the Court of Appeals for the District of Columbia Circuit is considering whether the President can unilaterally remove the Register of Copyrights.

Our Latest Work

Rule of Law
September 10, 2026

September 2026 Newsletter: Protecting People’s Constitutional Rights and the Rule of Law Across the Country

This newsletter spends a lot of time on the U.S. Supreme Court, but here at CAC, we’re...
Civil and Human Rights
U.S. Court of Appeals for the Fourth Circuit

Womble v. Patel

In Womble v. Patel, the U.S. Court of Appeals for the Fourth Circuit is considering whether a North Carolina prison’s failure to provide a prisoner with a hearing-aid battery violated the Americans with Disabilities Act.
Immigration and Citizenship
U.S. Supreme Court

Genalo v. Black

In Genalo v. Black, the Supreme Court is considering whether prolonged detention without a bond hearing during immigration proceedings violates the Due Process Clause of the Fifth Amendment.
Rule of Law
U.S. Court of Appeals for the District of Columbia Circuit

Perlmutter v. Blanche

In Perlmutter v. Blanche, the Court of Appeals for the District of Columbia Circuit is considering whether the President can unilaterally remove the Register of Copyrights.
Access to Justice
U.S. Court of Appeals for the Eleventh Circuit

United States ex rel. Zafirov v. Florida Medical Associates

In United States ex rel. Zafirov v. Florida Medical Associates, the United States Court of Appeals for the Eleventh Circuit considered whether the qui tam provision of the False Claims Act violates the Appointments Clause...
Rule of Law
September 1, 2026

Open Letter: A Network of 175+ Organizations Uniting to Defend the Rule of Law and Protect Vulnerable Communities

Nonprofits Together
CAC signed onto an open letter with a coalition of civil society, advocacy, and nonpartisan...

Issues We Work On

CAC's work addresses many of the most important topics in modern constitutional and federal law.
Access to Justice
Civil and Human Rights
Corporate Accountability
Criminal Law
Environmental Protection
Federal Courts and Nominations
Health Care
Immigration and Citizenship
Rule of Law
Voting Rights and Democracy

Our Latest Cases

Great Hall of the Supreme Court of the United States | Phil Roeder, Flickr (CC BY 2.0)

CAC pursues a litigation strategy unique among progressive legal organizations by relying on the Constitution’s text and history. Our powerful amicus briefs provide invaluable arguments to Supreme Court Justices, legal scholars, and fellow advocates. Our clients include current and former bipartisan Members of Congress, state and local officials, law professors, and various nonprofit organizations. CAC’s efforts help to secure important legal victories in the Supreme Court, lower federal courts, and state supreme courts.

See More CAC Cases

From Our Think Tank

See More From Our Think Tank
The result of the Fifteenth Amendment | Library of Congress (Public Domain)

CAC produces scholarship showing that the Constitution’s text and history command progressive results. We publish comprehensive accounts of some of the most important and contentious topics in modern constitutional and federal law through issue briefs, white papers, insights, and our think tank series. Our legal experts also inform public discussion around these topics by giving written and oral testimony in congressional committee hearings.

The Arc of Constitutional Progress

The Constitution is, in its most vital respects, a progressive document, written by revolutionaries and amended by We the People who prevailed in the most tumultuous social upheavals of our Nation’s history. Explore the rich history of our Constitution, from the Founding to Reconstruction and beyond.
View the Timeline

Celebrating our Nation's Second Founding

Learn more about the transformational Amendments — the Thirteenth, Fourteenth, and Fifteenth — passed during Reconstruction, that helped give our nation what President Lincoln promised at Gettysburg, "a new birth of freedom."
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