The Colorado Sun: A handful of conservative political nonprofits that don’t disclose their donors have had a big influence on three measures on Colorado’s statewide ballot this year.

Their millions of dollars in combined spending may not have previously been known. But a 2022 law now requires the groups, after they spent $5,000 in total in a calendar year on a measure, to disclose any future expenditures over $1,000 on an initiative to the Colorado Secretary of State’s Office within 48 hours.

It is still unclear who the nonprofits’ funders are. Nonprofits don’t have to disclose them as long as their spending on two or more ballot measures doesn’t exceed 30% of their total spending over three years, or as long as their spending on a single measure doesn’t exceed 20% of their total expenditures for three years. But we now know how much the so-called dark money groups are spending on the measures.

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