Start with the ad’s “Paid for by” disclaimer, then search that payer’s name in your state’s campaign-finance records. For a federal race, check the Federal Election Commission (FEC) as well; for online ads, use the platform’s ad archive as a cross-check. These records can show who sponsored an ad and what committees reported receiving or spending, but they do not always reveal every source of an organization’s money.
1. Record the ad’s sponsor details
Before searching, note the exact name in the “Paid for by” notice, including any abbreviation or committee name. Also record when and where you saw the ad, its medium or platform, and whether it says a candidate authorized it. The FEC explains that covered federal communications identify the payer and whether a candidate authorized the ad; specific disclaimer rules vary by format. FEC advertising and disclaimers
Use the name as a search lead, not as proof of every donor behind the organization. A payer disclaimer identifies the sponsor named on the ad; contributor and spending records answer different questions.
2. Find the right state disclosure office
Political spending for state and local races is generally governed by state-specific rules and reported through the responsible state or local office. Depending on the state, that office may be the secretary of state, a campaign-finance agency, or an ethics commission. The FEC’s Combined Federal/State Disclosure and Election Directory links to state election and disclosure offices. The FEC notes that state and local activity may have reporting requirements separate from FEC filings. FEC information on filing reports
Use the directory to reach the relevant office, then follow its campaign-finance or disclosure search link. The exact portal, filing deadlines, and coverage depend on the jurisdiction; there is no single state database or nationwide state-level rule.
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3. Search the state campaign-finance records
Search the portal for the payer’s exact name. If that finds no match, try the organization’s abbreviation or the committee name shown in the disclaimer. Look for the committee’s registration and reports covering the ad’s date. Where the portal provides them, review:
- Expenditure reports: whether the committee reported spending on advertising or other election activity.
- Contribution reports: money the committee reported receiving, including contributor names where disclosure rules require them.
- Filing periods: the dates covered by each report, so you can tell whether it could include the ad’s spending.
State law determines which organizations and communications must be reported, what information appears, and when it is filed. A missing search result alone does not establish that no spending occurred; the payer may use another name, the report may not yet cover the ad date, or the activity may fall outside the disclosure rules.
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4. Check FEC records for federal races
If the ad concerns a federal candidate, search FEC records for the named committee and for reported independent expenditures. An independent expenditure is a communication expressly advocating the election or defeat of a clearly identified federal candidate that is not made in consultation or cooperation with, or at the request or suggestion of, that candidate or party. Political committees report independent expenditures to the FEC, subject to applicable reporting requirements. FEC guidance on making independent expenditures
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Do not apply this federal definition or its filing framework automatically to state or local races; those are handled under the relevant jurisdiction’s rules.
5. Look up online ads in platform archives
Facebook and Instagram
Search Meta’s Ad Library for the ad, payer, or relevant issue. Meta says political and social-issue ads running on Facebook and Instagram are searchable there for seven years and include “Paid for by” labels. Treat the library listing as a way to identify the sponsor and locate the ad, then compare its name with campaign-finance filings.
Search Google’s Ads Transparency Center for political-ad information. Google describes the center as a source for information about who paid for political ads and whom they targeted. The records available depend on platform coverage and the tool’s current interface.
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6. Compare what each record actually establishes
Keep the ad, platform archive, and finance filing distinct. They may connect, but each documents a different part of the funding trail.
| Record | What it can establish | What it does not establish by itself |
|---|---|---|
| Ad disclaimer | The organization identified as the payer and, where stated, whether a candidate authorized the communication. | Every contributor or the organization’s ultimate funding sources. |
| Campaign-finance report | Contributions and expenditures the committee reported under the applicable rules and for the filing period shown. | Spending or funding not required to be disclosed in that report or jurisdiction. |
| Platform ad archive | Ad and payer information available under that platform’s archive coverage and interface. | A complete account of campaign-finance activity across platforms or all funding behind the payer. |
Match the records by payer name, race, ad date, and filing period. The FEC’s electioneering-communication guidance also describes a federal reporting rule: covered communications paid for by an individual or organization and not authorized by a candidate must carry a payer disclaimer; covered spending aggregating over $10,000 in a calendar year must be reported on Form 9. That threshold applies to the described federal electioneering-communication rule, not to every state ad or political expenditure. FEC guidance on electioneering communications
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How to describe what you found
Be precise about the source: say “The ad identifies [organization] as the payer” when relying on its disclaimer, or “The committee reported [spending/contributions] in [filing]” when citing a finance report. Avoid describing either record as proof of a complete chain of ultimate funding unless the records establish that chain.
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