Portland, Oregon voters passed a campaign finance measure to limit large political campaign contributions.

The amended charter limits independent expenditures to an aggregate of $5,000 per individual and an aggregate of $10,000 per political committee, provided contributions to the committee by individuals does not exceed $500 per individual per year.

The campaign limits are vulnerable to legal challenge. In 1997, the Oregon Supreme Court struck down statewide campaign finance limits as a violation of free speech protection outlined by the Oregon Constitution.

Prior to the passage of this measure, the City of Portland adopted a public finance system by City Council vote.

It provides matching funds to eligible candidates for mayor, city commissioner, and auditor with funding to begin in the 2019-2020 election.