American Constitution Society for Law and Policy

Square logo of the American Constitution Society for Law and Policy. (link) by Acslaw1776 is licensed CC BY-SA 3.0 (link)


Tax ID:


Tax-Exempt Status:


Budget (2021):

Revenue: $5,609,154
Expenses: $6,378,626
Assets: $6,124,680



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The American Constitution Society for Law and Policy (ACS) is a left-of-center legal activist group that aims to frame the United States Constitution as a document whose meaning shifts based on historical and political circumstances and that lawmakers should apply its articles and amendments accordingly. To advance this view, often called “living constitutionalism.” ACS hosts discussions and other public events, provides networking opportunities to its supporters in the legal and policymaking fields, and generates talking points for activist lawyers. The ACS touts its preference for recruiting individuals from ethnic and sexual minority backgrounds and recommends that its members implement hiring and mentoring practices that favor these minority groups.1

ACS has been described as a “liberal Federalist Society” – a reference to the prominent right-leaning and “originalist” legal advocacy organization. ACS maintains ties with the Democracy Alliance, a network of left-of-center philanthropists and institutional donors that has injected nearly $2 billion into its favored causes since its founding in 2005. The ACS has also received funding from the Tides Nexus, another major left-of-center grantmaking collective, as well as the Open Society Foundations of financier and activist philanthropist George Soros. The organization’s willingness to accept funding from global mega-corporations such as Amazon, Facebook, Google, and Microsoft has earned it criticism from other left-of-center activists who oppose corporate influence on politics.2


The American Constitution Society for Law and Policy (ACS) was founded in 2001 by Georgetown University Law Professor Peter J. Rubin. According to the New York Times, Rubin was inspired to start the foundation to act as a “liberal counterweight” to the growing right-wing Federalist Society under President George W. Bush. 3


American Constitution Society had substantial influence during the Obama administration. President Obama’s first Attorney General, Eric Holder, was a board member of ACS. Former White House staff secretary Lisa Brown, Domestic Policy Council head Melody Barnes, and Vice President Joe Biden’s former chief of staff Ron Klain also had ties to the organization. ACS also had members on the Obama transition team, and the New York Times speculated that other ACS members would be used to fill judgeships.4

After the election of President Donald Trump, the ACS rallied progressive activists in opposition to Trump’s judicial nominees. The group held a conference call with progressive activists and urged them to encourage Democratic U.S. Senators to stall President Trump’s nominees.5 This was a reversal from ACS’s position from the Obama administration, during which the ACS complained about the stalling of President Obama’s judicial nominees.6

ACS has also joined with other organizations to form a left-wing state-policy think tank. In 2015, the ACS’s “American Legislative and Issue Campaign Exchange” joined with two other similar groups to form the State Innovation Exchange. All three groups received a combined total of $9.1 million from George Soros and organizations associated with the liberal billionaire, with ACS receiving $5.8 million. 7

Following the 2020 general election, American Constitution Society began campaigning and lobbying for President Joe Biden to fill judicial vacancies with left-of-center judges. Its goal was to take advantage of the Democratic control of the Senate by appointing as many liberal judges as possible while also making up for lost opportunities to do so during President Barack Obama’s presidency.8


As of 2022, Russ Feingold was the president of the American Constitution Society. He was a Wisconsin state Senator between 1983 to 1993, and a United States Senator for Wisconsin from 1993 to 2011. Feingold co-sponsored the Bipartisan Campaign Reform Act, commonly known as the McCain-Feingold Act, a major piece of election finance legislation. He was also the only Senator who voted against the initial version of the controversial 2001 Patriot Act, and was a vocal opponent of the Iraq War.9

Feingold supports expanding the legality and availability of abortion and claimed that the 2022 Supreme Court decision overturning the controversial decades-long pro-abortion precedent set by the Roe v. Wade decision would lead to “devastation.” He also claimed that the Supreme Court, which has consisted of nine justices since the mid-19th century, was unfairly “packed” to achieve this outcome.10

Prior to Feingold, Caroline Fredrickson led ACS. She is a former legal director at NARAL Pro-Choice America (formerly the National Abortion Rights Action League). She also served as chief of staff to U.S. Senator Maria Cantwell (D-Washington). She is a senior fellow at the left-of-center Brennan Center for Justice. 11


The single largest backer of the American Constitution Society is George Soros’s Open Society Network. Other major funders include some of the most influential grantmakers on the political left, including the William and Flora Hewlett Foundation, the Bernard and Anne Spitzer Charitable Trust, and the Democracy Fund.12

From 2015 through 2020, the ACS’s annual revenue fluctuated between $4.5 million and $8.2 million.13

According to its 2022 990 form the ACS reported a revenue of $6,077,061, expenses at $6,588,977, and total assets of $5,783,763. 14

According to its 2022 annual report, the ACS received reported donations of over $1 million from the Wellspring Philanthropic Fund, Weston Milliken, and the Open Society Foundations. In addition the same report disclosed donations to the ACS from Google and Meta, each donating between $100,000 and $249,000. 15


  1. “About ACS.” American Constitution Society. Accessed August 28, 2022.
  2. “American Constitution Society: What Donors Need to Know.” Blue Tent. Accessed August 28, 2022.
  3.  Savage, Charlie. “Liberal Legal Group Is Following New Administration’s Path to Power.” New York Times, December 10, 2008.
  4. Charlie Savage. “Liberal Legal Group Is Following New Administration’s Path to Power.” The New York Times. December 11, 2008. Accessed September 21, 2017.
  5. Lovelace, Ryan. 2017. “Liberal Activists Fretting Trump Takeover Of Federal Judiciary Rally Grassroots In Obstruction Campaign”. Washington Examiner. Accessed September 21 2017.
  6. “Federal Judicial Nominations | Brennan Center For Justice”. 2017. Brennancenter.Org. Accessed September 21 2017.
  7. “Soros Spends More Than $9 Million To Form New Political Money Machine”. 2015. Media Research Center. Accessed September 22 2017.
  8. Zoe Tillman. “Trump Filled the Courts with Conservative Judges. It Won’t Be as Easy for Biden to Do the Same with Liberal Ones.” Buzzfeed News. December 18, 2020. Accessed August 28, 2022.
  9. “Russ Feingold.” American Constitution Society. Accessed August 28, 2022.
  10. Russ Feingold. Twitter. August 25, 2022. Accessed August 28, 2022.
  11. Fredrickson, Caroline. “Caroline Fredrickson.” Brennan Center for Justice, April 5, 2022.  
  12. “ACS Supporters.” American Constitution Society. Accessed August 28, 2022.
  13. “American Constitution Society for Law and Policy.” ProPublica Nonprofit Explorer. Accessed August 28, 2022.
  14. Return of Organization Exempt from Income Tax (Form 990). American Constitution Society for Law and Policy. 2022. Part I.
  15. “2022 Annual Report.” American Constitution Society for Law and Policy, Accessed February 20, 2024.

Directors, Employees & Supporters

  1. Robert Raben
    Former Board Member
  2. Nicole Berner
    Board Member
  3. Peter Edelman
    Former Board Chair
  4. George Soros
    Funder (via Open Society Foundations)
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Nonprofit Information

  • Accounting Period: December - November
  • Tax Exemption Received: May 1, 2001

  • Available Filings

    Period Form Type Total revenue Total functional expenses Total assets (EOY) Total liabilities (EOY) Unrelated business income? Total contributions Program service revenue Investment income Comp. of current officers, directors, etc. Form 990
    2021 Dec Form 990 $5,609,154 $6,378,626 $6,124,680 $523,995 N $5,571,128 $29,500 $0 $370,190
    2020 Dec Form 990 $6,026,578 $5,485,314 $6,759,745 $389,588 N $5,993,111 $12,441 $10,773 $461,940
    2019 Dec Form 990 $8,154,588 $6,799,658 $6,297,970 $469,077 N $7,846,517 $234,049 $69,700 $513,958 PDF
    2018 Dec Form 990 $4,948,783 $6,397,412 $4,970,952 $496,989 Y $4,152,063 $736,286 $55,826 $307,347 PDF
    2017 Dec Form 990 $6,405,050 $5,891,120 $6,315,292 $392,700 N $5,578,738 $793,417 $17,812 $306,515
    2016 Dec Form 990 $6,524,808 $5,020,583 $5,663,707 $255,045 N $5,896,202 $609,904 $12,776 $303,177 PDF
    2015 Dec Form 990 $4,502,142 $5,087,389 $4,075,097 $170,660 N $3,780,558 $705,332 $4,597 $291,157 PDF
    2014 Dec Form 990 $3,575,507 $4,627,486 $4,691,822 $202,138 N $2,693,040 $867,466 $7,101 $288,769 PDF
    2013 Dec Form 990 $6,900,044 $4,466,589 $5,726,422 $184,759 N $6,042,545 $846,266 $4,069 $274,161 PDF
    2012 Dec Form 990 $3,182,015 $4,166,211 $3,286,410 $178,202 N $2,405,265 $764,474 $1,346 $267,158 PDF
    2011 Dec Form 990 $4,118,918 $4,087,829 $4,401,283 $308,879 N $3,375,739 $730,749 $3,476 $435,574 PDF

    Additional Filings (PDFs)

    American Constitution Society for Law and Policy

    1333 H ST 11TH FLOOR
    WASHINGTON, DC 20005-4707