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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United States Constitution | National Archives and Records Administration

What's New at CAC

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

Voting Rights and Democracy
U.S. Supreme Court

Republican National Committee v. Mi Familia Vota

In Republican National Committee v. Mi Familia Vota, the Supreme Court is considering, among other things, whether the National Voter Registration Act prohibits Arizona from requiring voter-registration applicants to produce “satisfactory evidence” of U.S. citizenship...
Access to Justice
U.S. Court of Appeals for the Fifth Circuit

NAACP v. xAI

In NAACP v. xAI, the United States Court of Appeals for the Fifth Circuit considered whether the federal government can block people harmed by the operation of a massive power plant near their homes from...
Criminal Law
U.S. Court of Appeals for the Fourth Circuit

Hayat v. Diaz

In Hayat v. Diaz, the United States Court of Appeals for the Fourth Circuit is considering whether police officers may forcibly enter homes without a warrant based only on “reasonable suspicion” of a crime.

Our Latest Work

Rule of Law
U.S. District Court for the Southern District of New York

Comey v. Department of Justice

In Comey v. Department of Justice, the United States District Court for the Southern District of New York considered whether the Attorney General can fire an Assistant U.S. Attorney in contravention of legal protections AUSAs...
Immigration and Citizenship
October 23, 2026

Appeals Court Backs Trump on Constitutionality of Detentions

The New York Times
The Fifth Circuit’s opinion upholding immigrant detention without due process was “a sadly predictable result”...
Rule of Law
October 23, 2026

Democrats Will Have To Outsmart Trump’s DOJ To Hold Him Accountable

Huffington Post
CAC Vice President Praveen Fernandes spoke to HuffPost about what can be done, both inside...
Immigration and Citizenship
U.S. Court of Appeals for the Fifth Circuit

Sosnava Rodriguez v. Vergara

In Sosnava Rodriguez v. Vergara, the Fifth Circuit considered whether the Due Process Clause allows the Trump administration to imprison, without bail, all undocumented immigrants during deportation proceedings against them.
Immigration and Citizenship
U.S. Court of Appeals for the Ninth Circuit

Community Legal Services in East Palo Alto v. HHS

In Community Legal Services in East Palo Alto v. HHS, the Ninth Circuit is considering whether to affirm a district court decision that prevented the Office of Refugee Resettlement from cutting off funding for legal services...
Voting Rights and Democracy
U.S. Court of Appeals for the First Circuit

California v. Trump

In California v. Trump, the United States Court of Appeals for the First Circuit is considering whether President Trump’s executive order on voting is unlawful.

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.

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From Our Think Tank

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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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