The Colorado Sun: Outside groups spent nearly $1.7 million on eight highly contested Colorado legislative primary races.

But it isn’t always easy to figure out where the money came from, despite a 2019 law touted as bringing more transparency to a system that includes cash from dark-money funded nonprofits that don’t disclose their donors.

In other instances, discerning where the money came from is possible if you have time to track all the state and federal committees involved until the funder is revealed.

Colorado’s independent expenditure committees, also known as super PACs, may take unlimited cash to make independent expenditures as long as they avoid coordinating with candidates or political parties.

Visit The Colorado Sun for more.