Updated Oct 16, 2026, 2:28 PM ET
Phil Weiser
Democratic · 3 November 2026

Phil Weiser

Attorney General of Colorado (since 2019)

Phil Weiser, a Democrat who has served as attorney general of Colorado since 2019, defeated Michael Bennet, a U.S. senator, in the 2026 Democratic primary for governor.

2026 Races & Market Forecast

Live TruthIndex™ and prediction market consensus for races contested by Phil Weiser.

Latest coverage

Live News

Recent media coverage for Phil Weiser.

  1. 3% of Colorado ballots returned so far; Former Republican Congressman Ken Buck endorses Democrat Phil Weiser in governor’s race; Dark money groups influencing Colorado midterms

    Phil Weiser is the Democratic candidate for Colorado governor who has received notable cross-party endorsements.

    kgnu.org
  2. Phil Weiser endorsed by Republicans, police union and Barack Obama

    Attorney General Phil Weiser has won the backing of some prominent current and former Republicans as well as the state’s biggest police union in his bid to be Colorado’s next governor, as he looks to solidify his…

    Denver Post
  3. Former Republican Colorado Congressman Ken Buck endorses Democrat Phil Weiser for governor - CBS Colorado

    Weiser is term-limited out of the attorney general's office and is running for governor for the first time. Weiser was elected to Colorado Attorney General in 2019.

    CBS News
  4. Colorado Governor’s race: Victor Marx

    Victor Marx discusses the Colorado governor race, highlighting contrasts with Phil Weiser.

    ijn.com
  5. Former Representative Ken Buck tops list of Colorado Republicans endorsing Weiser for governor

    Former Colorado Attorney General Phil Weiser, the Democratic candidate for governor, has gained notable cross-ideological support from Republican figures. Former U.S.

    kiowacountypress.net
More coverage 3
  1. Weiser, Marx in race to succeed Polis as Colorado governor - CBS Colorado

    Republican Victor Marx and Democrat Phil Weiser are the major-party nominees on Nov. 3. Both promise to make Colorado more affordable.

    CBS NewsMarx
  2. Former Rep. Ken Buck tops list of Colorado Republicans endorsing Weiser for governor

    Weiser, who has served as Colorado’s attorney general since 2019, is favored in the race to succeed outgoing Democratic Gov. Jared Polis, who is term-limited.

    Colorado NewslineMarx
  3. President Barack Obama Supports Phil Weiser for Governor

    DENVER, CO – Today, Democratic nominee for governor of Colorado Phil Weiser announced the support of President Barack Obama, who praised Phil’s record of public service and leadership, and his commitment to lowering…

    yellowscene.com
Born
May 10, 1968
Education
Swarthmore College (B.A. in political science)
New York University School of Law (J.D.)

Biography & Campaign Analysis

Background

Philip Jacob Weiser was born on May 10, 1968, into an Ashkenazi Jewish family. His grandparents were Holocaust survivors, and Estare, his mother, was born in 1945 in the Buchenwald concentration camp. He majored in political science at Swarthmore College and graduated with high honors in 1990, then earned his Juris Doctor in 1994 at the New York University School of Law, serving as an articles editor of its law review.

Career

Weiser clerked on the Tenth Circuit Court of Appeals for Judge David Ebel from 1994 to 1995 and then for Supreme Court Justices Byron R. White and Ruth Bader Ginsburg from 1995 to 1996.

From 1996 to 1998 he worked as senior counsel to Joel Klein, head of the Antitrust Division at the Justice Department.

He moved to the University of Colorado Law School in Boulder in 1999 to teach law and telecommunications, founded its Silicon Flatirons Center for Law, Technology, and Entrepreneurship, and was dean of the school from 2011 to 2016.

During the Obama administration he was deputy assistant attorney general for antitrust from 2009 and, from 2010, the National Economic Council director's senior adviser on technology and innovation.

Weiser won the 2018 election for attorney general of Colorado over Republican George Brauchler, took office in January 2019 as the first Democrat in the post in 15 years, and was reelected in 2022 over John Kellner with more than 54% of the vote. In July 2019 he named eight Sackler family members as defendants in the state's lawsuit against Purdue Pharma. Since January 2025 his office has brought or joined over 65 suits contesting Trump administration policies.

2026 race

Weiser announced his campaign for governor of Colorado on January 2, 2025; Jared Polis, the Democratic incumbent, cannot seek a third consecutive term. Weiser reached the Democratic primary ballot through the state party assembly, where he was the only candidate to pass the 30% threshold, while Michael Bennet, a U.S. senator, qualified by petition. Weiser defeated Bennet in the June 30, 2026 primary and faces Republican nominee Victor Marx in the November 3 general election.