The Oregon Republican Party is not recommending a "yes" vote on any of the seven measures on the ballot in November.
The GOP's State Central Committee voted Saturday to oppose five of the measures. The committee took no position on two others.
Republicans say voters should reject marijuana legalization and labeling requirements for foods with genetically modified ingredients. The GOP also isn't keen on granting driving privileges to people who can't prove they're legally in the United States or authorizing the state to sell bonds to provide college financial assistance.
Republicans had previously come out against a measure that would replace the party primary elections with a top-two primary, in which the top two vote-getters in the May election advance to November.