Dark Money in State and Local Elections

Dark money — political spending by nonprofit organizations that are not required to disclose their donors — is not limited to federal campaigns. State legislative races, municipal elections, ballot measure campaigns, and local judicial contests have all become venues where undisclosed nonprofit spending shapes political outcomes. This page covers how dark money operates below the federal level, the structural conditions that enable it, and the practical distinctions that determine whether spending in a given state race triggers any disclosure at all.

Definition and scope

At the federal level, dark money refers primarily to spending by 501(c)(4) social welfare organizations, 501(c)(6) trade associations, and similar nonprofits that engage in political activity without disclosing their donors to the Federal Election Commission. For a full treatment of the foundational concept, see What Is Dark Money.

At the state and local level, the same basic structure applies, but the regulatory landscape fragments sharply. Fifty separate state campaign finance regimes — plus the District of Columbia — govern what must be disclosed, by whom, and when. As documented by the National Conference of State Legislatures, state disclosure requirements vary from comprehensive to minimal. The result is a patchwork in which a nonprofit spending $500,000 on mailers attacking a state senate candidate may face full donor disclosure obligations in one state and none in an adjacent one.

The scope of state and local dark money spending is not trivial. OpenSecrets has tracked hundreds of millions of dollars in dark money flowing through state-level races across election cycles since the 2010 Citizens United v. FEC decision. State ballot measure campaigns — where no candidate is on the ballot and candidate contribution limits do not apply — have been a particularly concentrated channel. For more on ballot measure spending specifically, see Dark Money and Ballot Measures.

How it works

The mechanical pathway for dark money in state elections mirrors the federal model with one critical variable: the triggering threshold for disclosure differs by jurisdiction.

A 501(c)(4) nonprofit incorporated under federal tax law raises funds from undisclosed donors. It allocates a portion of its budget — limited under IRS rules to less than 50% of total expenditures — to activities characterized as political (IRS, Tax-Exempt Organizations and Political Campaign Intervention). It then directs those funds toward a state race through one of the following mechanisms:

1. Independent expenditures — direct spending on advertisements expressly advocating for or against a named candidate, which most states require to be reported even if the underlying donor list is not.
2. Issue advocacy — communications that discuss a candidate's record without using explicit electoral language ("vote for," "vote against"), which typically falls outside disclosure requirements in states with narrow definitions of electioneering.
3. Grants to other nonprofits — transfers to a second or third nonprofit that then spends on the race, creating a pass-through structure that further distances the original donor from the public record.
4. Coordination with state party committees — in states where transfers from nonprofits to party committees are permitted without full source disclosure, dark money can enter party spending streams.

State-level 501(c)(4) organizations and dark money interact with this system in the same structural way as their federal counterparts, but the enforcement authority shifts from the FEC to state election agencies, which vary dramatically in staffing, investigative capacity, and penalty authority.

Common scenarios

State legislative races: Competitive state senate and house districts in swing states have attracted dark money independent expenditure campaigns that rival the total spending of the candidate committees themselves. Because legislative districts are small, a $200,000 independent expenditure in a state house race can represent a decisive intervention.

Judicial elections: 38 states hold some form of judicial election (Brennan Center for Justice, Justice at Stake). Dark money spending in supreme court races reached documented eight-figure totals in states including Wisconsin and Ohio in the 2010s. For a detailed treatment, see Dark Money in Judicial Elections.

Ballot measure campaigns: Initiative and referendum campaigns involve no candidate and are therefore outside traditional campaign finance contribution limits in most states. Nonprofits can spend without limit and, depending on state law, without donor disclosure. Campaigns involving utility regulation, drug policy, and tax measures have each drawn documented dark money activity.

Municipal and school board elections: Low-turnout local elections amplify the impact of organized outside spending. A 501(c)(4) spending $50,000 on a school board race in a district where total campaign spending typically reaches $20,000 can be dispositive. Because local races attract minimal press scrutiny, donor identification is rare even where disclosure is technically required.

Decision boundaries

The practical question for any given expenditure is whether state law classifies it as a reportable political communication. The key variables are:

• Electioneering communication definition: Some states define electioneering broadly — any communication that names a candidate within 60 days of a general election — while others require explicit electoral language. Narrow definitions create space for undisclosed issue advocacy.
• Entity type: A handful of states have enacted laws requiring donor disclosure from any organization spending above a threshold on state races, regardless of federal tax status. California's Political Reform Act, administered by the California Fair Political Practices Commission, imposes disclosure obligations on dark money groups that differ materially from the federal baseline. For a state-by-state comparison, see State Dark Money Disclosure Laws.
• Spending threshold: Most states set a minimum dollar amount below which even reportable entities face no filing requirement. These thresholds range from $500 to $5,000, meaning small-scale local spending may be entirely invisible.
• Pass-through depth: When a dark money nonprofit grants funds to a second nonprofit that then spends in a state race, most state laws attribute the expenditure to the direct spender, not the original source. The FEC disclosure rules that govern federal races have no direct state equivalent, and state agencies rarely have jurisdiction over nonprofits incorporated in other states.

The dark money vs. Super PACs distinction matters here: Super PACs must disclose donors to the FEC even when operating in federal races, but a parallel nonprofit can fund the same messaging in a state race and face no equivalent obligation in disclosure-minimal states. The full landscape of these mechanisms is mapped across Key Dimensions and Scopes of Dark Money, and the broader resource index is available at the Dark Money Authority homepage.