Contributions by donor and committee

What this dataset measures

Built to check who pays for each side of I-638, including the No pamphlet's statement that the measure is "bankrolled by an ultra-conservative mega-donor." Both main committees work on more than one measure, so the dataset separates money a committee raised (shared across its measures) from spending its own reports assign to I-638. All contributions and expenditures of the two committees are taken whole from PDC open data; nothing is sampled. The 2025 election year is included because the I-638 signature drive ran in 2025 and the signatures were filed in January 2026.

Geography

Washington State

Unit of observation

Donor per committee (contributions); committee and election year (spending allocated to I-638); committee (registered I-638 committees).

Update cadence

One-time snapshot of PDC data downloaded 2026-10-23 (latest receipts October 23, 2026). Committees keep filing until after the November 3, 2026 election; rerun the build script for later totals.

Curator

FactHub Research Team

Curated data tables

Contributions by donor and committee

Each organization giving $5,000 or more and each individual giving $25,000 or more to Let's Go Washington or No Hate in WA State in the 2025 and 2026 election years, plus one aggregate row per donor type and location for smaller donors.

Unit of observation: Donor per committee

i638_donors.csv text/csv · 14.7 KB (15,075 bytes)

The first 100 of 102 rows 13 columns Download the full file

The first 100 of 102 rows

filer_id	committee	side	donor	donor_type	donor_location	cash US dollars	in_kind US dollars	total US dollars	share_of_committee fraction (0-1)	election_year_2025 US dollars	election_year_2026 US dollars	receipts
FREEW--138	No Hate in WA State	No	Inatai Foundation	Foundation or philanthropy	Washington	1000000	0	1000000	0.2254	0	1000000	3
FREEW--138	No Hate in WA State	No	SEIU 775 Ballot Fund	Labor union	Washington	750500	0	750500	0.1691	50000	700500	5
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (individual, Washington)	Individual	Washington	472710.26	981.03	473691.29	0.1068	2563	471128.29	1336
FREEW--138	No Hate in WA State	No	Washington Education Association	Labor union	Washington	337500	92728.38	430228.38	0.097	50000	380228.38	22
FREEW--138	No Hate in WA State	No	ACLU of Washington	Civil-liberties, LGBTQ or reproductive-rights group	Washington	300000	32103.07	332103.07	0.0749	158550.44	173552.63	19
FREEW--138	No Hate in WA State	No	National Education Association	Labor union	Outside Washington	250000	0	250000	0.0563	0	250000	1
FREEW--138	No Hate in WA State	No	Small contributions (unitemized)	Small or unitemized contributions	Not reported	132973.09	0	132973.09	0.03	7041	125932.09	149
FREEW--138	No Hate in WA State	No	Gender Justice League	Civil-liberties, LGBTQ or reproductive-rights group	Washington	110000	15340.84	125340.84	0.0282	92165.54	33175.3	10
FREEW--138	No Hate in WA State	No	SEIU Initiative Fund	Labor union	Washington	100000	0	100000	0.0225	0	100000	1
FREEW--138	No Hate in WA State	No	UFCW Local 3000	Labor union	Washington	75000	0	75000	0.0169	0	75000	1
FREEW--138	No Hate in WA State	No	SEIU Washington State Council	Labor union	Washington	75000	0	75000	0.0169	0	75000	1
FREEW--138	No Hate in WA State	No	WFSE	Labor union	Washington	70000	0	70000	0.0158	0	70000	2
FREEW--138	No Hate in WA State	No	Social Justice Fund	Foundation or philanthropy	Washington	65000	0	65000	0.0146	0	65000	1
FREEW--138	No Hate in WA State	No	Pro-Choice Washington	Civil-liberties, LGBTQ or reproductive-rights group	Washington	20000	34894.63	54894.63	0.0124	23611.51	31283.12	16
FREEW--138	No Hate in WA State	No	Ross Boucher	Individual	Outside Washington	50000	0	50000	0.0113	0	50000	1
FREEW--138	No Hate in WA State	No	Pacific Market Research	Business or other organization	Washington	0	34500	34500	0.0078	0	34500	1
FREEW--138	No Hate in WA State	No	Equal Rights for All Petition Committee	Political committee	Outside Washington	33275	0	33275	0.0075	0	33275	1
FREEW--138	No Hate in WA State	No	Rebecca Liebman	Individual	Washington	30000	0	30000	0.0068	0	30000	1
FREEW--138	No Hate in WA State	No	Lisa Mennet	Individual	Washington	30000	0	30000	0.0068	0	30000	1
FREEW--138	No Hate in WA State	No	Rachel Gelman	Individual	Outside Washington	30000	0	30000	0.0068	0	30000	1
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (individual, Outside Washington)	Individual	Outside Washington	27879.61	0	27879.61	0.0063	0	27879.61	39
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (business or other organization, Washington)	Business or other organization	Washington	17925.94	8225	26150.94	0.0059	3300	22850.94	40
FREEW--138	No Hate in WA State	No	Invest in Washington Now	Political committee	Washington	0	25050	25050	0.0056	0	25050	1
FREEW--138	No Hate in WA State	No	Grace Ann Nordhoff	Individual	Washington	25000	0	25000	0.0056	0	25000	1
FREEW--138	No Hate in WA State	No	Northwest Health Foundation	Foundation or philanthropy	Outside Washington	25000	0	25000	0.0056	0	25000	1
FREEW--138	No Hate in WA State	No	SEIU 925 Ballot Fund	Labor union	Washington	25000	0	25000	0.0056	0	25000	1
FREEW--138	No Hate in WA State	No	Human Rights Campaign	Civil-liberties, LGBTQ or reproductive-rights group	Outside Washington	22845.35	0	22845.35	0.0051	0	22845.35	2
FREEW--138	No Hate in WA State	No	Planned Parenthood Great Northwest, Hawaii, Alaska, Indiana, Kentucky	Civil-liberties, LGBTQ or reproductive-rights group	Washington	20000	0	20000	0.0045	0	20000	1
FREEW--138	No Hate in WA State	No	Planned Parenthood Alliance Advocates	Civil-liberties, LGBTQ or reproductive-rights group	Washington	1000	13286.48	14286.48	0.0032	0	14286.48	5
FREEW--138	No Hate in WA State	No	Washington Bus	Other nonprofit	Washington	0	12617.27	12617.27	0.0028	3816.79	8800.48	30
FREEW--138	No Hate in WA State	No	Lavender Rights Project	Civil-liberties, LGBTQ or reproductive-rights group	Washington	10000.01	0	10000.01	0.0023	0	10000.01	1
FREEW--138	No Hate in WA State	No	Build Our Movement PAC	Political committee	Outside Washington	10000	0	10000	0.0023	0	10000	2
FREEW--138	No Hate in WA State	No	Washington Bus Education Fund	Other nonprofit	Washington	0	7922.43	7922.43	0.0018	0	7922.43	18
FREEW--138	No Hate in WA State	No	Blue Wave Political Partners	Business or other organization	Washington	0	7000	7000	0.0016	7000	0	1
FREEW--138	No Hate in WA State	No	Pacific County Voices Uniting	Political committee	Washington	0	6458.33	6458.33	0.0015	0	6458.33	2
FREEW--138	No Hate in WA State	No	The Washington Bus	Other nonprofit	Washington	0	6053.36	6053.36	0.0014	0	6053.36	4
FREEW--138	No Hate in WA State	No	Heather Weiner LLC dba PowerHouse Strategic	Business or other organization	Washington	0	5500	5500	0.0012	5500	0	2
FREEW--138	No Hate in WA State	No	The Share Fund LLC	Business or other organization	Washington	5000	0	5000	0.0011	0	5000	1
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (other nonprofit, Washington)	Other nonprofit	Washington	0	4538.77	4538.77	0.001	0	4538.77	2
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (labor union, Washington)	Labor union	Washington	4500	0	4500	0.001	0	4500	3
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (business or other organization, Outside Washington)	Business or other organization	Outside Washington	2500	1442.51	3942.51	0.0009	0	3942.51	7
FREEW--138	No Hate in WA State	No	Other donors under the naming threshold (individual, Not reported)	Individual	Not reported	-338.3	0	-338.3	-0.0001	-338.3	0	4
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Brian Heywood	Brian Heywood	Washington	2275000	5049	2280049	0.2915	1622913	657136	39
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Other donors under the naming threshold (individual, Washington)	Individual	Washington	943358.22	24000	967358.22	0.1237	146383	820975.22	2052
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Gordon Steve	Individual	Washington	902000	0	902000	0.1153	652000	250000	8
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Kelley DevCom LLC	Business or other organization	Washington	450000	0	450000	0.0575	250000	200000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Washington Rising Inc	Other nonprofit	Outside Washington	300000	0	300000	0.0384	300000	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Kemper Holdings LLC	Business or other organization	Washington	250000	0	250000	0.032	150000	100000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Hughes Lawrence	Individual	Washington	250000	0	250000	0.032	0	250000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Crow Robert	Individual	Washington	245000	0	245000	0.0313	0	245000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Small contributions (unitemized)	Small or unitemized contributions	Not reported	228901.02	0	228901.02	0.0293	56028	172873.02	402
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	TDM Strategies	Business or other organization	Washington	0	189531.7	189531.7	0.0242	189531.7	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Gordon Virginia	Individual	Washington	125000	0	125000	0.016	0	125000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Gordon Larry	Individual	Washington	125000	0	125000	0.016	0	125000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Sundquist Larry	Individual	Washington	105000	0	105000	0.0134	55000	50000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Sundquist Diane	Individual	Washington	105000	0	105000	0.0134	55000	50000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Sanders Molly	Individual	Washington	100000	0	100000	0.0128	100000	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Schlaepfer Phil	Individual	Outside Washington	100000	0	100000	0.0128	0	100000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Waldorf Chris	Individual	Washington	73000	0	73000	0.0093	1000	72000	4
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Hermanson Richard	Individual	Washington	61000	0	61000	0.0078	30000	31000	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Zieve Peter	Individual	Washington	55000	0	55000	0.007	50000	5000	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Rowley Properties, Inc.	Business or other organization	Washington	50000	0	50000	0.0064	25000	25000	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Petrie George	Individual	Washington	50000	0	50000	0.0064	25000	25000	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Abraham Zach	Individual	Washington	50000	0	50000	0.0064	0	50000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	McKinley Sands	Individual	Washington	46000	0	46000	0.0059	11000	35000	22
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Other donors under the naming threshold (individual, Outside Washington)	Individual	Outside Washington	43490	0	43490	0.0056	1180	42310	26
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Plath Peter	Individual	Washington	35000	0	35000	0.0045	0	35000	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Barber David	Individual	Washington	26275	0	26275	0.0034	8750	17525	4
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Barber Jean	Individual	Washington	26250	0	26250	0.0034	8750	17500	3
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Dussault Michael	Individual	Washington	25525	0	25525	0.0033	0	25525	5
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Buerk Arthur	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Cohn Ron	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Muglia Laura Ellen	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Muglia Bob	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Parks Annette	Individual	Washington	25000	0	25000	0.0032	25000	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Gordon Scott	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Building Industry Association of Washington	Business or trade group	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Proudman Jesse	Individual	Washington	25000	0	25000	0.0032	0	25000	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Davis Jeff	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Bundrant Diane	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Double M Orchards, LLC	Business or other organization	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Hammond John	Individual	Outside Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	WaFd Inc	Business or other organization	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	BIAW Member Services Corporation	Business or trade group	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Domingos Pedro	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Desert Bloom Residence LLC	Business or other organization	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Bundrant Joe	Individual	Washington	25000	0	25000	0.0032	0	25000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Evergreen Leadership Fund	Political committee	Washington	20000	0	20000	0.0026	0	20000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Harley Douglass Inc	Business or other organization	Washington	20000	0	20000	0.0026	0	20000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Other donors under the naming threshold (business or other organization, Washington)	Business or other organization	Washington	8850	3700	12550	0.0016	4500	8050	14
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Fremont Dock Co.	Business or other organization	Washington	10000	0	10000	0.0013	10000	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Nursery Holdings, LLC	Business or other organization	Washington	10000	0	10000	0.0013	0	10000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Wallace Properties	Business or other organization	Washington	10000	0	10000	0.0013	0	10000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Divcon, Inc.	Business or other organization	Washington	10000	0	10000	0.0013	0	10000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Wallace/Scott Bellevue !!, LLC	Business or other organization	Washington	0	9013.33	9013.33	0.0012	9013.33	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	PROJECT 42	Business or other organization	Washington	0	6213.02	6213.02	0.0008	6213.02	0	7
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Freemont Dock Co.	Business or other organization	Washington	5000	0	5000	0.0006	0	5000	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	The Nelson Foundation	Foundation or philanthropy	Washington	5000	0	5000	0.0006	5000	0	1
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Tippett Company of Washington, LLC	Business or other organization	Washington	5000	0	5000	0.0006	5000	0	2
HEYWL--535	Let's Go Washington (Sponsored by Brian Heywood)	Yes	Associated Builders and Contractors Inland Pacific Chapter, Inc.	Business or trade group	Washington	5000	0	5000	0.0006	0	5000	1

13 field definitions

Field	Type	Meaning	Units	Value type
filer_id	string	PDC filer ID of the receiving committee.	—	observed
committee	string	Committee name as registered.	—	observed
side	string	Yes or No on I-638.	—	derived
donor	string	Contributor name as reported (Brian Heywood's is normalized from "HEYWOOD BRIAN"), or an aggregate label.	—	observed
donor_type	string	FactHub donor type (see limitations).	—	derived
donor_location	string	Washington, Outside Washington, or Not reported (unitemized gifts).	—	derived
cash	number	Cash contributions.	US dollars	observed
in_kind	number	In-kind contributions at the committee's reported value.	US dollars	observed
total	number	Cash plus in-kind.	US dollars	derived
share_of_committee	number	Share of the committee's 2025-26 receipts.	fraction (0-1)	derived
election_year_2025	number	Part of total reported under the 2025 election year.	US dollars	observed
election_year_2026	number	Part of total reported under the 2026 election year.	US dollars	observed
receipts	integer	Number of contribution records.	—	observed

Supporting files

Source snapshots, manifests, quality reports, documentation, and other materials used to produce or review this release.

• i638_campaign_finance.js Transformation manifest · text/javascript · 12.8 KB (13,087 bytes)

  Node.js script that downloads the PDC data from data.wa.gov and writes every table.

• i638_campaign_finance_dataset_parts.json Documentation · application/json · 36.9 KB (37,796 bytes)

  The dataset's tables, field definitions, saved analyses, sources, events and limitations as JSON, as stored in version 1 (figures through October 21, 2026). Later versions' figures are in the CSV tables and saved analyses of the version you are viewing.

• indorg.js Transformation manifest · text/javascript · 1.8 KB (1,815 bytes)

  Node.js script that computes the individuals-vs-organizations analysis from the same raw PDC contribution downloads.

Sources

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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 and reproducibility

Fully reproducible from public data: The included script i638_campaign_finance.js queries data.wa.gov (PDC datasets kv7h-kjye contributions, tijg-9zyp expenditures, 3h9x-7bvm summary and d2ig-r3q4 loans) and writes every table. Donor-type labels for organizations are a fixed list in the script. Totals will differ if run later because committees keep filing and amending reports.

• Snapshot: the latest receipts in the data are dated October 23, 2026. No Hate in WA State reported $1.4 million from two donors between September 22 and October 21 alone, and $95,000 more on October 22-23. Itemized expenditures in the data run through October 12; by then it had spent $2.51 million of the $4.44 million it has raised, so its I-638 spending will grow before November 3.
• Both main committees work on more than one measure. Contributions are not earmarked by measure, so a donor's money cannot be traced to I-638. Let's Go Washington backs IL26-001 (parental rights), IL26-638 and IP26-645 (income-tax repeal); No Hate in WA State opposes IL26-001 and IL26-638.
• Spending is assigned to I-638 only from the measure numbers in each expenditure's own purpose description, split equally across the measures it names. Some descriptions give their own estimates; for Let's Go Washington they differ from an equal split by $32,522 in total. Several No Hate descriptions list a dollar figure per measure equal to the whole item; the equal split is used. Spending that names no measure (staff, legal, overhead) is shown separately and, in one column, prorated.
• Donor type is FactHub's classification of each organization by name. Inatai Foundation describes itself as a 501(c)(4) philanthropy; it is grouped with foundations. Gender Justice League, the ACLU of Washington, the Human Rights Campaign, Lavender Rights Project, Pro-Choice Washington, Planned Parenthood Alliance Advocates and Planned Parenthood Great Northwest, Hawaii, Alaska, Indiana, Kentucky are grouped as civil-liberties, LGBTQ and reproductive-rights groups. SEIU Washington State Council is grouped with labor unions.
• Donor location is the state in the contributor's reported address. National organizations can report a Washington address (SEIU Initiative Fund), and the location of the money behind an organization (for example Washington Rising Inc of Franklin, Tennessee) is not disclosed in these records.
• Individuals who gave less than $25,000 to a committee, and organizations under $5,000, are aggregated by type and location rather than named. No addresses are published.
• Brian Heywood's loans to Let's Go Washington ($4.66 million, made in 2023-24 and carried forward) are not contributions and are excluded; LGW reported no new loans in 2025 or 2026.
• Other committees on I-638 (county parties, Defend Washington, Planned Parenthood Advocates of Greater Washington, Seattle Indivisible and others) are listed with their 2026 totals but not itemized. All of them cover several measures, and some gave to No Hate in WA State, so their totals overlap.
• Independent expenditures and electioneering communications on I-638 reported to the PDC totaled about $16,400 (portion attributed to I-638) and are not included in the committee totals.