Colorado Ballot Committees Reported Massive Spending

Political committees spent over $3 million on three state ballot measures during a two-week period this September.

Updated on Sept. 23, 2026 in Elections

Isometric editorial illustration showing a stack of ballot envelopes and geometric currency blocks, representing Colorado campaign finance reporting. — Political action committees in Colorado reported over $3 million in spending on state ballot measures between September 3 and September 16. AI Illustration. Upload story photo >

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Issue committees poured over $3 million into three Colorado ballot measures between September 3 and September 16, according to recent campaign finance filings. The spending spree focused primarily on advertising as groups ramp up advocacy efforts before ballots go out in October.

Why it matters

This influx of funding aims to sway voter outcomes on key policy issues and influence legislative control in the state. Advocacy groups and political parties are using these resources to shape public opinion on everything from identification requirements to education funding.

Official campaign finance filings detail $3 million in spending across three ballot measures between Sept. 3 and Sept. 16. The data tracks how much committees like the Colorado Voter Trust Initiative and Yes for Colorado Kids have deployed so far.

The players

Phil Weiser

Phil Weiser is a candidate for governor who reported $198,000 in campaign spending.

Victor Marx

Victor Marx is a Republican candidate for governor who reported $175,000 in spending.

Colorado Voter Trust Initiative

This issue committee spent $2 million to support Amendment 84.

Senate Majority Fund

This political organization spent almost $1 million on state senate races to influence the balance of the legislature.

Yes for Colorado Kids

This committee spent $715,000 to support Proposition NN regarding education funding.

The details

The Colorado Voter Trust Initiative led the spending, contributing $2 million to support Amendment 84, which would require voters to provide identification numbers on mail ballot envelopes. Additionally, the Senate Majority Fund directed almost $1 million toward state senate races, while gubernatorial candidates Phil Weiser and Victor Marx reported significant individual expenditures.

Committees spent over $3 million on ballot measures between Sept. 3 and Sept. 16.
County clerks will begin mailing ballots to voters on October 2.
Election Day for ballot measures and candidate races is November 3.

Political Context

This spending follows a pattern set by recent efforts to either defend or flip seats to alter the state legislature's current superminority status. Opposition parties continue to raise concerns regarding the influence of major interest groups on local legislative agendas and policy outcomes.

These campaign finance filings provide voters with transparency regarding which organizations are backing specific policy changes on their upcoming ballots. Residents can expect to see an increase in political advertising across the state as the November 3 election nears.

The takeaway

Voters should be aware that intense campaign spending often signals the importance of upcoming ballot measures to special interest groups. Checking official campaign finance reports can help individuals understand who is funding the advertisements they see in the lead-up to election day.