


In the 2022 Senate race for CO Senate seat, Michael Bennet (D) won with 55.9% of the vote, defeating Joe O'Dea (R) who received 41.3%. 3 additional candidates split the remaining vote. Michael Bennet's 14.6-point lead over the runner-up showed solid but not overwhelming support.
This was an open-seat race with no incumbent running — John Wright Hickenlooper (D) previously held the seat. Open seats typically attract stronger candidates and heavier spending from both parties. As a Democrat, Michael Bennet won despite the historical midterm penalty against the president's party (Democrat Biden was in office).
In the 2016 Senate race for CO Senate seat, Michael F. Bennet (D) won with 50.0% of the vote, defeating Darryl Glenn (R) who received 44.3%. 5 additional candidates split the remaining vote. Michael F. Bennet's 5.7-point lead over the runner-up showed solid but not overwhelming support.
This was an open-seat race. Open seats typically attract stronger candidates and heavier spending from both parties. The 2016 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.