Oregon Ballot Measure 90 was a ballot measure in the U.S. state of Oregon to determine whether or not to enact a law changing its primary election. Rather than registered voters associated with both major political parties choosing party nominees, the measure would allow the top two leaders in an "all-comers primary" to proceed to the general election, regardless of party affiliation.
Measure 90 failed to pass, getting unanimously rejected at the county level.