Oregon incumbent Sen. Jeff Merkley defeated Republican challenger Jo Rae Perkins in a race to defend his US Senate race.
All of Oregon's polling sites officially closed by 8 p.m. Pacific Time and 11 p.m. Eastern Time on the night of the election, and Decision Desk HQ and Insider projected Merkley's win shortly thereafter.
Merkley was first elected to the US Senate in 2008 when he defeated Republican Gordon H. Smith by 3.4 percentage points. He was reelected in 2016 after besting challenger Monica Wehby by 18.8 percentage points.
In the 2016 presidential election, the state voted for Democratic nominee Hillary Clinton over President Donald Trump by 11 percentage points.
Sabato's Crystal Ball at the University of Virginia Center for Politics ranks the contest as "safe" Democratic.