Arizona’s Proposition 211, the Voters’ Right to Know Act, sets the campaign finance disclosure rules that force the real funders behind political advertising into public view. Any person, company, union, nonprofit, or committee that spends $50,000 or more on campaign media in a statewide race, or $25,000 or more in any other race, has to file a public report and trace the money back through every intermediary to the people or businesses that originally earned it.1Arizona Legislature. Arizona State Senate Fact Sheet for SCR 1012 Voters approved the measure in November 2022.
Who Has to Disclose and When
The trigger is cumulative spending across an election cycle, not a single ad buy. Once an entity’s campaign media spending crosses $50,000 in a statewide contest or $25,000 in a legislative or local race, it becomes a “covered person” and has five days to file an initial disclosure report. In-kind contributions, such as donated production work or free airtime, count toward the total the same as cash.
From that point on, the obligation is ongoing. Covered persons have to keep their disclosures current as new money comes in or new expenditures go out, so the public record builds throughout the campaign rather than appearing as a single pre-election snapshot.
What Counts as Campaign Media Spending
The statute defines “campaign media spending” broadly. It covers any public communication that expressly supports or opposes a candidate, promotes or attacks a candidate within six months of an election, or refers to a clearly identified candidate within 90 days before a primary through the general election. Spending on ballot measures, recalls, and partisan voter registration or get-out-the-vote work also counts.2Arizona Legislature. Arizona Revised Statutes Title 16-971 – Definitions
The definition reaches beyond the ad buy itself. Research, polling, data analytics, mailing list acquisition, social media targeting, and production costs all qualify when they’re done in preparation for one of those communications. Opposition research that feeds into a television spot gets folded into the total.2Arizona Legislature. Arizona Revised Statutes Title 16-971 – Definitions
Several things sit outside the rules. Legitimate news coverage, commentary, and editorials are excluded as long as the outlet isn’t owned by a candidate, candidate committee, or political party. Nonpartisan voter registration drives, published books, documentaries sold through normal distribution channels, and candidate debates are also exempt.2Arizona Legislature. Arizona Revised Statutes Title 16-971 – Definitions
Tracing Money Back to the Original Donor
This is what sets Prop 211 apart from most campaign finance laws. Naming the spending organization isn’t enough. The law requires tracing funds backward through every intermediary until they reach what the statute calls the “donors of original monies,” meaning the individuals or entities whose own income, assets, or business revenue generated the money.
Every link in the chain has to pass along records identifying where the money came from. If a nonprofit gets $100,000 from a trade association, and the trade association pulled that money from corporate members, the nonprofit can’t just list the trade association. It has to trace back to the corporate members, and further still depending on how those entities are structured. The tracing stops when the actual economic source is identified.
Not every traced donor ends up named publicly. Only donors of original monies who contributed more than $5,000 in traceable funds or in-kind contributions during the cycle appear in the disclosure report.1Arizona Legislature. Arizona State Senate Fact Sheet for SCR 1012 Contributions at or below that amount stay private.
What a Disclosure Report Contains
Reports go to the Arizona Secretary of State for statewide and legislative races, or to the appropriate local filing officer for local races. For each donor of original monies above the $5,000 threshold, the report has to include the donor’s full name, home address, and current employer or occupation.1Arizona Legislature. Arizona State Senate Fact Sheet for SCR 1012 Filings are electronic and become public records, and they’re updated as the cycle continues.
Disclaimers on the Ads Themselves
Separate from the reports filed with election officials, the ads themselves have to carry disclaimers naming the top funders. This builds on Arizona’s existing framework under ARS 16-925, which already required political action committees to name their three largest contributors above $20,000 along with a “paid for by” notice. PAC-funded ads also have to disclose the aggregate percentage of contributions that came from out-of-state donors, so a voter can see not only who paid for an ad but how much of the money originated outside Arizona.3Arizona Legislature. Arizona Revised Statutes Title 16-925 – Advertising and Fundraising Disclosure Statements
Format requirements vary by medium. Television disclaimers run as on-screen text at specified minimum sizes and durations, radio spots use a spoken disclaimer at the beginning or end, print mailers display the information in readable type, and digital ads must be clearly readable.3Arizona Legislature. Arizona Revised Statutes Title 16-925 – Advertising and Fundraising Disclosure Statements
Enforcement and Penalties
The Citizens Clean Elections Commission oversees and enforces the Voters’ Right to Know Act.2Arizona Legislature. Arizona Revised Statutes Title 16-971 – Definitions It can open investigations, hold fact-finding hearings, and impose civil penalties. Members of the public can file formal complaints; the accused entity gets notice and a chance to respond before any penalty is imposed. Commission decisions can be appealed.
The statute authorizes civil penalties designed to make noncompliance more expensive than compliance, though the precise multiplier applied to undisclosed spending is a point on which available statute text leaves room for uncertainty.
Court Challenges Still Pending
The rules are in effect, but the law is still being litigated. As of late 2025, the Arizona Supreme Court ruled that Republican state legislators have standing to challenge Prop 211 on separation-of-powers grounds and sent the case back to a trial court. The court did not rule on the law’s constitutionality in that decision. A separate challenge from the Center for Arizona Policy and the Arizona Free Enterprise Club is also pending, though lower courts have rejected those arguments so far.
The challenges draw on the U.S. Supreme Court’s 2021 decision in Americans for Prosperity Foundation v. Bonta, which struck down a California requirement that charities disclose major donors to the state attorney general and held that donor disclosure regimes must satisfy “exacting scrutiny.”4Supreme Court of the United States. Americans for Prosperity Foundation v. Bonta Supporters of Prop 211 argue the law is narrowly tailored because it reaches only large-scale campaign spending and exempts smaller donors, news coverage, and nonpartisan activity. Opponents argue it still sweeps too broadly and chills the associational rights of donors who prefer anonymity. How Arizona’s courts resolve the pending cases will determine whether the current rules stand as written.