Income Tax Repeal Campaign Funded by Public-Sector Unions, Records Show

New campaign finance filings are shedding light on who is funding the campaign against Initiative 645, the measure that would repeal Washington's newly enacted income tax. According to publicly available records from the Washington Public Disclosure Commission (PDC), public-sector unions account for the largest reported contributions supporting the campaign opposing the initiative. The filings identify major donations from organizations including the Washington Federation of State Employees and SEIU-affiliated groups. The campaign finance disclosures come as Washington voters prepare to decide Initiative 645 in November, while a separate legal challenge to the income tax continues through the courts. Supporters and opponents of the measure are expected to continue raising and spending significant sums ahead of Election Day. Watch as we examine the latest campaign finance records, the major donors involved, and what they could mean for one of Washington's highest-profile ballot measures. #WashingtonPolitics #IncomeTax #Initiative645 #CampaignFinance #Election2026 #WashingtonNews #TheCenterSquare #WashingtonInFocus