Brittany Pettersen

In the 2024 House race for CO-7, Brittany Pettersen (D) won with 55.3% of the vote, defeating Sergei Matveyuk (R) who received 41.1%. 3 additional candidates split the remaining vote. Brittany Pettersen's 14.2-point lead over the runner-up showed solid but not overwhelming support.

As the incumbent, Brittany Pettersen benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2024 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.

In the 2022 House race for CO-7, Brittany Pettersen (D) won with 56.4% of the vote, defeating Erik Aadland (R) who received 41.4%. 2 additional candidates split the remaining vote. Brittany Pettersen's 15.0-point lead over the runner-up showed solid but not overwhelming support.

This was an open-seat race with no incumbent running — Ed Perlmutter (D) previously held the seat. Open seats typically attract stronger candidates and heavier spending from both parties. As a Democrat, Brittany Pettersen won despite the historical midterm penalty against the president's party (Democrat Biden was in office).