The Oregon Democratic and Republican Presidential Primary Elections are key components of the national process for selecting the presidential nominees for both major parties in the United States. Conducted through a mail-in voting system, which Oregon has pioneered and used exclusively for all elections, these primaries offer a unique and accessible way for registered Democrats and Republicans in the state to participate in the democratic process. Held in May, these primaries not only allow Oregonians to express their preferences for their parties’ candidates but also play a crucial role in allocating delegates to the Democratic and Republican National Conventions. The results from Oregon can influence the momentum of the presidential nomination races, especially in a tightly contested election year. Oregon’s primaries are a testament to the state’s commitment to voter accessibility and engagement, highlighting its influence in shaping the national political landscape.