IF (big if) Golden wins next week he should either: A) run for King's seat if he retires in 2024, or B) run for Collins' seat in 2026 (I don't think she runs again but who knows.)
Absolutely not, Democrats don't need another Sinema.
Anyways, Maine polls are pretty infamous for overestimating Democrats (especially ME-02 polls
"In the 2nd District, where (unlike in the race for Governor) ranked choice voting will be used, incumbent Democrat Jared Golden wins 43% of first-choice votes; former Republican US Representative Bruce Poliquin, who was unseated by Golden in 2018, takes 40%. 8% cast their first-round votes for independent Tiffany Bond; 9% are undecided. If undecided voters are disregarded, Golden has 47% of first-choice votes, Poliquin 43%, Bond 9%.
When Bond is eliminated, and her supporters' votes are re-allocated to their 2nd choice candidates, Golden defeats Poliquin, 54% to 46%."
This is important to note, Golden is not above 50%, sure he gets most of Bond's votes, but excluding undecideds makes these R2 numbers basically useless.