FactHub reusable chart
Yes spent on I-638 signatures in 2025; No outspends Yes in 2026
Spending that each main I-638 committee's own expenditure reports tie to I-638, by election year, as reported to the Washington Public Disclosure Commission (itemized expenditures through October 12, 2026, in data downloaded October 23). Shared items are split equally across the measures they name.
Credit: FactHub Research Team; data from the Washington Public Disclosure Commission
Node: chart:i638-spending-by-side-and-year:3
Hover over the chart or focus a point to inspect its values.
What this chart asks
How much has each side spent on I-638, and when?
Why it is shown this way
- One bar per side and year, plus each side's two-year total, so the shift from the 2025 signature drive to the 2026 campaign is visible.
- Color marks the side; labels on the x axis repeat it so color is not needed to read the chart.
- The y axis starts at zero.
Data and accessibility
Download chart data · Open accessible table · Download PNG · Download SVG
Dataset wa-i638-campaign-finance,
analysis spending-on-i638-by-year
Sources
This chart draws on the sources of the dataset versions it visualizes.
Washington I-638 campaign money by side, donor and measure (2025-26)
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Washington Public Disclosure Commission: Contributions to Candidates and Political Committees (data.wa.gov kv7h-kjye)
Every itemized contribution to Let's Go Washington (HEYWL--535) and No Hate in WA State (FREEW--138), 2025 and 2026 election years
Retrieved October 23, 2026. Public record (RCW 29B); Washington open data. Public disclosure data; redistributed in aggregate with attribution
Reliability: Government. Filed by the committees themselves under Washington's campaign disclosure law and published by the PDC. Committees can amend reports, and in-kind values are the committees' own estimates.
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Washington Public Disclosure Commission: Expenditures by Candidates and Political Committees (data.wa.gov tijg-9zyp)
Each committee's itemized expenditures and their stated purposes, used to assign spending to I-638
Retrieved October 23, 2026. Public record (RCW 29B); Washington open data. Public disclosure data; redistributed in aggregate with attribution
Reliability: Government. Purpose descriptions are written by the filing committee. The PDC does not verify how a committee splits shared costs between measures.
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Washington Public Disclosure Commission: Campaign Finance Summary (data.wa.gov 3h9x-7bvm)
The list of committees registered for or against I-638, the measures each covers, and their 2026 totals
Retrieved October 23, 2026. Public record (RCW 29B); Washington open data. Public disclosure data; redistributed with attribution
Reliability: Government. Totals are computed by the PDC from committee filings and updated as reports arrive.
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Washington Public Disclosure Commission: Loans to Candidates and Political Committees (data.wa.gov d2ig-r3q4)
Brian Heywood's loans to Let's Go Washington
Retrieved October 23, 2026. Public record (RCW 29B); Washington open data. Public disclosure data; redistributed with attribution
Reliability: Government. Loans are reported by the borrowing committee, with the lender's name.
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Washington Public Disclosure Commission: Independent Campaign Expenditures and Electioneering Communications (data.wa.gov 67cp-h962)
Independent expenditures naming I-638 (for the size check in the limitations)
Retrieved October 23, 2026. Public record (RCW 29B); Washington open data. Public disclosure data; redistributed with attribution
Reliability: Government. Reported by the sponsors of the advertising; the portion attributed to each measure is the sponsor's own estimate.
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Washington Public Disclosure Commission: Enforcement case 192919, Let's Go Washington (Sponsored by Brian Heywood)
Outcome of the 2026 complaint about unreported in-kind contributions from a commentator (also in data.wa.gov a4ma-dq6s)
Retrieved October 23, 2026. Public record. Public government record; short quotation
Reliability: Government. The PDC's own case record, written by its staff. The complaint was filed on behalf of Washingtonians for Ethical Government.
Limitations
- Counts only spending whose own description names I-638. Let's Go Washington's spending that names no measure ($2.48 million over both years, mostly staff, legal and consulting) is not included; prorating it would raise the Yes 2025-26 total from $1.36 million to $1.99 million. The No side's unallocated spending is small ($88,557).
- Snapshot: itemized expenditures run through October 12, 2026; by then No Hate in WA State had about $1.9 million raised but not yet spent.