Years before he was a potential 2020 presidential candidate, Beto O’Rourke was a leading voice in a high-profile battle with a police union.

A closer look at Ken Salazar’s record of involvement in Colorado races sheds light on the debate over party influence in primaries.

The party has spent more than $2 million for access to the email list, voter data, and software produced by Hillary for America during the 2016 campaign.