


In the 2020 Senate race for OR Senate seat, Jeff Merkley (D) won with 56.9% of the vote, defeating Jo Rae Perkins (R) who received 39.3%. 3 additional candidates split the remaining vote. Jeff Merkley's 17.6-point advantage over the runner-up confirmed a comfortable win.
This was an open-seat race with no incumbent running — Ron Wyden (D) previously held the seat. Open seats typically attract stronger candidates and heavier spending from both parties. The 2020 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.
In the 2014 Senate race for OR Senate seat, Jeff Merkley (D) won with 55.7% of the vote, defeating Monica Wehby (R) who received 36.9%. 4 additional candidates split the remaining vote. Jeff Merkley's 18.9-point advantage over the runner-up confirmed a comfortable win.
This was an open-seat race. Open seats typically attract stronger candidates and heavier spending from both parties. As a Democrat, Jeff Merkley won despite the historical midterm penalty against the president's party (Democrat Obama was in office).