**Incumbent Lauren Boebert advanced unopposed through the June 2026 Republican primary for Colorado’s 4th Congressional District and remains the active nominee on the November general-election ballot.** Recent campaign finance reports, debate participation, and outside spending patterns show her continuing to raise funds and receive support from aligned groups, with no public statements or procedural moves indicating withdrawal. The district’s strong Republican registration edge and historical voting patterns reinforce expectations that she will stay in the race through Election Day. Realistic scenarios that could still alter the outcome include a late personal health issue, family emergency, or major new scandal prompting party pressure to exit before ballots are finalized.