Colorado Election Odds — 2026 Live Betting Odds & Voting History

Two sitting Democrats are running for offices that almost certainly aren't seriously contested by Republicans. Senator Michael Bennet left the U.S. Senate to run for governor, an open seat created by Jared Polis's term limit. Senator John Hickenlooper is seeking a second term in the Senate seat Bennet just vacated. The Republican primary fields against both are weak by any historical Colorado measure — the state party's bench is thin enough that anonymous GOP consultants have told reporters that "they don't believe they can win." Two competitive House seats round out the federal ballot. June 30 primary. For balance-of-power and 2028 presidential markets that aren't on this page, the homepage covers the national picture.

Colorado governor betting odds

The basic math: Polis won 2018 by 10 points and 2022 by nearly 20. Colorado hasn't elected a Republican governor since Bill Owens's 2002 re-election. Cook rates the 2026 race Solid Democratic.

The Democratic primary is functionally a two-way contest. U.S. Sen. Michael Bennet entered in 2025 and immediately consolidated establishment support — endorsements from Hickenlooper, Denver Mayor Mike Johnston, Reps. Crow and Neguse, plus the entire Salazar family. Mid-2025 primary polling had Bennet at 53%, Weiser at 22%, undecided at 25%. AG Phil Weiser was the first major candidate in (January 2025) and is running on a record of state-level legal fights against the Trump administration. Bennet was the only candidate to petition onto the ballot directly; Weiser made it via 30%-plus at the state assembly. Bennet, if elected, would resign his Senate seat — Polis would then appoint a replacement until a special election.

The Republican field is the unusual story. Greg Lopez, a former U.S. representative who finished third in the 2022 GOP primary, was running as a Republican before leaving the party in January 2026 to run as an independent. State Sen. Mark Baisley, originally a gubernatorial candidate, switched to the U.S. Senate race. State Sen. Barbara Kirkmeyer (Weld County, 2022 House nominee) and state Rep. Scott Bottoms are the remaining major GOP gubernatorial candidates, along with Victor Marx. Cook rates Solid Democratic. Primary June 30, 2026.

A first-time mechanic: the lieutenant governor is now elected on a joint ticket with the governor, similar to Arizona's new arrangement.

Colorado presidential election betting odds

Colorado swung from purple to blue across the 2010s. Harris won by 11 points in 2024, basically matching Biden's 13.5-point margin in 2020. The state used to be in the swing-state conversation; it isn't anymore.

Cook PVI rates Colorado D+4 — competitive on paper, but the state has voted Democratic in every presidential election since 2008. The 2028 markets price it as Likely Democratic. Bennet ran for the Democratic presidential nomination in 2020; if he wins the governor's race in 2026, that profile could re-emerge.

Colorado senate betting odds

Hickenlooper is seeking a second term after winning 2020 by 9 points over Cory Gardner — the last Republican senator from Colorado. He's a former two-term Denver mayor and two-term Colorado governor. He raised more than $1 million in Q1 2025 alone and entered the cycle with substantial cash on hand.

The Republican primary tells the bigger story. The state GOP bench is depleted after a decade of statewide losses, and Republican candidates with realistic name recognition have declined to run. Janak Joshi, a former state representative whose medical license was suspended in 2008 for "unprofessional conduct," is one of the two declared candidates. George Markert, a retired Marine Corps colonel endorsed by Tom Tancredo, is the other. Mark Baisley, the state senator who switched from the gubernatorial race, is the third major candidate. None has serious statewide profile. Cook rates Solid Democratic. Colorado uses semi-closed primaries on June 30, 2026.

Colorado house betting odds

Four Democrats and four Republicans share the state's 8 House seats — one of the more balanced delegations in any blue state. The marquee race is CO-8 (Adams County and northern Denver suburbs), where Republican Gabe Evans defeated incumbent Democrat Yadira Caraveo in 2024 by less than a point. CO-8 is the freshest swing district in the state and is at the top of Democratic targeting lists for 2026.

CO-3 (Western Slope) is now held by Republican Jeff Hurd, who won the seat in 2024 after Lauren Boebert moved to CO-4. Competitive on paper, less so in practice. The other six seats — three each — are essentially safe.

Colorado uses an independent commission for redistricting and is not doing mid-decade map changes.