Oregon voters have little impact on the presidential election.
Since most states allocate their Electoral College votes on a winner-take-all basis, there's no incentive for presidential candidates to campaign in states with "safe" majorities in favor of either political party. Candidates write off "safe" states to focus on "swing" states and on the concerns of swing voters, regardless how marginal or unrepresentative. In the end, it's even possible for a candidate to win the presidency without winning the popular vote, as has happened four times in our history.
National Popular Vote (NPV) is a simple reform to fix our broken presidential election system. It would make every vote in every state matter, and ensure that the candidate who wins the popular vote is the one who becomes president. NPV is an agreement among some states to change the way they allocate their electoral votes, designating them all to the winner of the national popular voter rather than to the winner of their state popular vote. The agreement takes effect once it's adopted by states with 270 electoral votes, enough to ensure that the national popular vote winner wins the election. So far, 9 states and Washington DC have passed NPV, securing 136 electoral votes. Common Cause Oregon has helped pass National Popular Vote twice in the Oregon House but it died both times in the Senate.