Dark Money and U.S. Supreme Court Confirmation Battles

Dark money — political spending by nonprofit organizations that are not required to disclose their donors — has become a structural feature of U.S. Supreme Court confirmation battles. This page examines how undisclosed nonprofit spending operates in the judicial confirmation context, what organizational forms enable it, what drives its growth, and where the legal and normative boundaries remain contested. Understanding this topic requires familiarity with the broader landscape of dark money in U.S. politics as well as the specific institutional environment of Senate confirmation proceedings.

• Definition and scope
• Core mechanics or structure
• Causal relationships or drivers
• Classification boundaries
• Tradeoffs and tensions
• Common misconceptions
• Checklist or steps (non-advisory)
• Reference table or matrix

Definition and scope

Dark money in Supreme Court confirmations refers to expenditures made by tax-exempt nonprofit organizations — primarily 501(c)(4) social welfare organizations and 501(c)(6) trade associations — to influence whether the Senate confirms or rejects a presidential nominee to the Supreme Court. Because these organizations are not required by the Internal Revenue Service or the Federal Election Commission to publicly identify individual donors, the ultimate sources of funding remain opaque even when the spending itself is publicly traceable.

The scope of this activity includes paid television, radio, and digital advertising; direct-mail campaigns targeting voters in key senators' states; grassroots mobilization; coalition coordination; and research and messaging operations. It does not include spending by registered lobbying firms, political action committees, or party committees — all of which carry distinct disclosure obligations under the Lobbying Disclosure Act or Federal Election Campaign Act.

Supreme Court confirmations are not elections in the constitutional sense, and the FEC has no jurisdiction over them. That jurisdictional gap is precisely what permits large-scale undisclosed nonprofit activity during confirmation fights. OpenSecrets, a nonpartisan research organization tracking campaign finance data, has documented hundreds of millions of dollars in nonprofit spending related to Supreme Court battles since 2005.

Core mechanics or structure

The operational architecture of dark money in confirmation battles follows a recognizable pattern involving four layers.

1. Donor contributions to 501(c)(4) organizations. Donors — individuals, corporations, or other nonprofits — contribute to a 501(c)(4) that has designated judicial nominations as part of its "primary purpose." Under IRS rules, a 501(c)(4) must primarily advance social welfare, not political activity, but the IRS has interpreted "primarily" as a facts-and-circumstances standard rather than a fixed percentage threshold (IRS Revenue Ruling 2004-6).

2. Grant pass-through to operational groups. A single umbrella 501(c)(4) may grant funds to pass-through nonprofits that then contract with media buyers, polling firms, or direct-mail vendors. Each layer of pass-through adds distance between the original donor and the publicly visible expenditure.

3. Issue advocacy framing. Because Senate confirmation is not an election, spending to "support" or "oppose" a nominee is classified as issue advocacy rather than electoral spending. This framing exempts organizations from FEC disclosure requirements entirely, even when the spending is explicitly tied to a named public official's fate.

4. Coordinated messaging without legal coordination. Multiple independently operating nonprofits may run parallel campaigns — sharing messaging, polling data, or research reports — without triggering coordination rules, because those rules apply only to campaign finance contexts.

The Judicial Crisis Network (operating in support of conservative nominees) and Demand Justice (operating in opposition or in support of liberal nominees) represent the most publicly identified organizations on each side of this structure. Both are organized as 501(c)(4)s and neither is required to disclose donors to the public.

Causal relationships or drivers

Four structural factors have driven the escalation of dark money in confirmation battles since 2005.

Lifetime tenure and policy stakes. A single Supreme Court appointment can influence constitutional interpretation for 30 or more years. That durational leverage converts a single confirmation into a multi-decade policy investment, justifying large expenditures from interests focused on healthcare regulation, environmental law, gun policy, or reproductive rights.

Citizens United and its aftermath. The Supreme Court's 2010 decision in Citizens United v. Federal Election Commission reinforced the constitutional protection for independent expenditures by nonprofit corporations, signaling that attempts to restrict such spending in political contexts would face strict scrutiny. The relationship between Citizens United and dark money is not one of direct causation for confirmation spending specifically, but it established a permissive legal environment that made aggressive nonprofit spending appear judicially sustainable.

Senate procedure changes. The elimination of the filibuster for Supreme Court nominees — first for lower-court nominees in 2013 under the Democratic majority, then extended to Supreme Court nominees in 2017 under the Republican majority — reduced the number of senators whose votes must be persuaded from 60 to 51. That mathematical change concentrated outside-spending pressure on a smaller set of swing-vote senators in fewer states.

IRS enforcement retreat. The IRS substantially curtailed enforcement of 501(c)(4) political activity standards after a 2013 controversy over screening of Tea Party applications. The resulting regulatory uncertainty made it operationally safer for nonprofits to spend aggressively without triggering IRS review.

Classification boundaries

Not all spending associated with Supreme Court confirmations qualifies as dark money in the technical sense. The classification turns on three variables: organizational form, disclosure obligation, and public identifiability of donors.

The boundary between dark money and disclosed spending is not always visible at the point of spending — a 501(c)(4) may run the same advertisement as a super PAC, but only the super PAC's donors appear in public filings. Dark money versus super PAC distinctions are frequently conflated in public debate but have distinct legal consequences.

Tradeoffs and tensions

The normative debate over dark money in confirmation battles contains genuine competing values, not merely strategic posturing.

Anonymity as protection versus anonymity as distortion. The First Amendment doctrine established in McIntyre v. Ohio Elections Commission (514 U.S. 334, 1995) recognizes that compelled disclosure can chill legitimate political speech, particularly for donors whose views are unpopular in their communities. The arguments for dark money anonymity are grounded in this protection. Against that, critics argue that undisclosed spending on a lifetime appointment to the third branch of government creates a structural accountability deficit that no amount of post-hoc analysis can remedy.

Judicial independence versus democratic accountability. Advocates for transparency contend that the public has a compelling interest in knowing who funds campaigns to shape the composition of the Court. Defenders of current law respond that imposing disclosure requirements on confirmation-related advocacy would entangle the nonprofit sector in campaign finance regulation that was never designed for the confirmation context.

Asymmetric reform risk. Any reform that increases disclosure for 501(c)(4) confirmation spending would apply equally to groups on both sides of the ideological spectrum. The DISCLOSE Act, introduced in multiple Congresses, would require disclosure of donors contributing $10,000 or more to organizations engaged in this kind of spending — but as of the 116th and 117th Congresses, the Act did not advance past the Senate.

Common misconceptions

Misconception: All outside spending on confirmations is dark money.
Correction: Super PACs, party committees, and registered lobbying firms all disclose donors under applicable law. Only spending by organizations exempt from those disclosure requirements qualifies as dark money.

Misconception: Dark money spending is illegal.
Correction: Nonprofit organizations are not prohibited from engaging in issue advocacy on nominations. The activity is lawful under current IRS and FEC rules. The policy debate concerns whether disclosure should be required, not whether the spending violates existing law.

Misconception: The FEC can regulate confirmation spending.
Correction: The FEC has jurisdiction over spending that expressly advocates for or against candidates in federal elections. A Supreme Court nominee is not a candidate for elected office. The FEC has no statutory basis to regulate confirmation-related advocacy (FEC regulations, 11 CFR Part 100).

Misconception: Donor identities are permanently hidden.
Correction: 501(c)(4) organizations file Form 990 with the IRS, which includes Schedule B listing donors above threshold amounts. Schedule B is not publicly disclosed, but it is available to the IRS. Investigative journalists and researchers have occasionally obtained donor information through leaks, court proceedings, or state-level registration filings.

Misconception: Only conservative groups use dark money in confirmations.
Correction: Both conservative organizations (notably Judicial Crisis Network) and liberal organizations (notably Demand Justice, formed in 2018) operate as 501(c)(4)s in confirmation fights. The full scope of dark money across partisan lines reflects spending on both sides, though the dollar magnitudes have differed by cycle.

Checklist or steps (non-advisory)

The following sequence describes how researchers, journalists, and civic monitors track dark money in a Supreme Court confirmation. It is a descriptive process map, not advice.

Phase 1: Identify the active organizational actors
- Review IRS Form 990 filings via ProPublica Nonprofit Explorer or the IRS Tax Exempt Organization Search for organizations publicly identified with confirmation campaigns.
- Note the organization's stated primary purpose, annual revenue, and grant recipients.
- Cross-reference FEC independent expenditure reports for any affiliated super PAC.

Phase 2: Map the financial flows
- Identify grants listed on Schedule I of Form 990 flowing to other nonprofits.
- Trace grant recipients to their own Form 990 filings to identify downstream spending.
- Consult OpenSecrets dark money data for aggregated estimates of organizational-level spending.

Phase 3: Analyze the advertising record
- Search the FCC's political file database for broadcast advertising purchases by or on behalf of the organization in states represented by key swing-vote senators.
- Cross-reference media-buy vendor names appearing in Form 990 functional expenses.

Phase 4: Document the policy connections
- Identify the legal, regulatory, or statutory outcomes the organization has publicly advocated for in connection with its confirmation-related spending.
- Review dark money and policy outcomes research for documented correlations between nomination spending and subsequent Court decisions.

Phase 5: Apply disclosure-gap analysis
- Determine which spending is publicly attributable and which remains unverified.
- Note state-level disclosure obligations that may apply if the organization solicited funds or ran ads in states with state-level dark money disclosure laws.

Reference table or matrix

The table below compares the four most prominently documented organizational actors in Supreme Court confirmation dark money campaigns based on publicly available Form 990 data and investigative reporting aggregated by OpenSecrets and the Brennan Center for Justice.

Note: 501(c)(3) organizations face stricter prohibitions on partisan political activity than 501(c)(4)s, but confirmation advocacy framed as public education or legislative analysis may fall within permissible activity under IRS rules. The full index of dark money-related topics provides additional context on the regulatory distinctions between organizational types.

Tracking confirmation-related dark money spending across a full confirmation cycle — from nomination announcement through Senate floor vote — requires integrating FCC public files, IRS Form 990 data, state lobbying disclosures, and media-monitoring datasets, none of which are consolidated in a single federal repository. The methods used by dark money research organizations reflect that fragmentation.