Phil
Weiser

Race-rating outlets Cook Political Report and Sabato's Crystal Ball rated the Colorado governor's race Solid D and Safe D respectively as of October 11. No verified public general-election poll had been logged in the poll-tracking dataset.

In a Denver Post profile, Weiser said his fights as attorney general—including settlements involving Meta and opioid manufacturers—established the foundation for his gubernatorial bid.

In an October 9 interview, Weiser said he had been endorsed by the Rocky Mountain Farmers Union, citing his meetings with farmers and commitment to rural Colorado.

Weiser participated in a Colorado Sun/Rocky Mountain PBS interview and criticized Marx for declining the invitation. Weiser declined to state a clear position on a graduated-income-tax ballot question but hinted at support for higher earners paying more.

Weiser and Marx appeared together at a Colorado Chamber of Commerce forum focused largely on business issues. Marx challenged Weiser over references to a 2014 sermon. Weiser supported rewriting the Labor Peace Act to ease union organizing and defended existing oil-and-gas safeguards.

Weiser's campaign reported raising nearly $1.7 million in the third quarter—his best quarterly total since early 2025—with $724,879 cash on hand as of October 1. Marx reported just over $1.1 million raised and $158,176 cash on hand.

As of October 7, the Secretary of State's investigation into Weiser campaign finance complaints remained pending, according to The Center Square.

In a Colorado Public Radio interview, Weiser announced his support for Proposition NN, a ballot measure to raise the revenue cap allowed under TABOR in order to increase K-12 education spending.

The Secretary of State's elections division opened an initial review of complaints alleging Weiser's campaign failed to timely refund excess contributions, giving the campaign until October 6 to respond. The Secretary of State's Office said there was enough evidence to warrant an investigation. Weiser's campaign said it had already cured all alleged violations.

Multiple voter guides published around October 3 confirmed Weiser as the Democratic nominee facing Republican Victor Marx and unaffiliated Greg Lopez in the November 3 general election.

At a Greeley town hall, Weiser said his first legislative priority would be a data center bill to put guardrails on data centers and ensure communities are heard.

Colorado Public Radio and other outlets published voter guides listing Weiser as the Democratic candidate in the general election alongside Republican Victor Marx and unaffiliated candidate Greg Lopez.

Danielle Neuschwanger filed two complaints on September 8 and 10 alleging that Weiser's campaign failed to refund 46 donations above Colorado's $1,450 individual contribution limit within the required period. These are allegations, not findings of a violation.

Weiser participated in a forum at the Pikes Peak Center sponsored by The Gazette, Colorado Politics, KOAA, and the El Pomar Foundation. Unaffiliated candidate Greg Lopez also participated; Republican Victor Marx did not.

Phil Weiser defeated U.S. Senator Michael Bennet in the Democratic primary to become the Democratic nominee for Colorado governor.