Contributions or gifts to Jeff Merkley for Oregon are not tax deductible under federal law. Oregon donors may be eligible for the Oregon political contributions tax credit. Consult your tax advisor. An individual may contribute a maximum of $2,600 per election (the primary and general are separate elections). By submitting your contribution, you agree that the first $2,600 of your contribution is designated for the primary, and any additional amount up to $2,600 is designated for the general election.