CO-1 is nearly coterminous with the city of Denver, and has a strong Democratic lean of D+29. Whichever Democrat wins the Democratic primary on June 30th is almost certain to win the general election on November 3rd.

Diane Degette is the incumbent representative and Colorado's current longest term representative, having represented the district since 1997. She is an establishment Democrat and a strong supporter of abortion rights.

Melat Kiros is a former lawyer, Ph.D. student in public affairs, and barista (which she has mentioned frequently throughout the campaign). She is a Democratic Socialist.

Wanda James is on the Colorado State Board of Regents, CEO of Simply Pure (a cannabis dispensary), and a former naval officer.

Colorado has a system where party members vote at an assembly for who should be in the primary, requiring 30% of the vote at the assembly. In addition, candidates can be in the primary by meeting a signature requirement. Degette and Kiros were chosen at the assembly, with 33% and 67% of the vote respectively. James met the signature requirement.

What's the diff between all these (D)? Why so many? How would someone pick one over the others?

https://ballotpedia.org/Colorado%27s_1st_Congressional_District

There will be a Democratic primary on June 30th; only one of these Democrats will appear on the general ballot in November. That Democrat will (almost certainly) win the election.

@Eliza policy positions. They are different

And Degette is the incumbent so if you are in a ‘change it up’ mood it might help you choose

@Jack1 How do I find out the difference in policy?

At what point does the member's difference in policy matter? I thought they needed like dozens of people to agree to do anything.