Manny Rutinel leads Polymarket odds for the CO-08 Democratic primary at 78.5% implied probability, driven by a recent RMG Research poll showing him ahead with 41% support among likely voters, bolstered by superior fundraising exceeding $1.2 million and endorsements from key labor unions and progressive groups. Incumbent Yadira Caraveo trails at single digits amid perceptions of vulnerability from her narrow 2022 general election win, while state Rep. Shannon Bird holds second at 12.5% on momentum from local legislative visibility but lags in polls around 20%. Other challengers like John Szemler, Amie Baca-Oehlert, and Dave Young remain marginal. With the June 25 primary approaching, trader consensus anticipates low turnout favoring well-funded frontrunners, though late endorsements or debates could shift dynamics.