Called by civicAPIUnofficial results
Colorado Senate District 27
Colorado State Senate · Colorado
Tom Sullivan won re-election by 22.9 points over Danielle Lammon.
Staggered Senate
Tom SullivanDemocrat · winner · incumbent
60.5%44,551
Danielle LammonRepublican
37.6%27,655
Michele PoagueLibertarian
1.9%1,422
73,628 votes
Source: Colorado Secretary of State unofficial results; race call: civicAPIUpdated Nov 7, 2026, 1:35 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Tom SullivanDanielle Lammon
$95.7K
Raised by the campaign
$55.9K
$70.5K
Spent by the campaign
$60.2K
Campaign money: Colorado Secretary of State (TRACER), through Oct 28, 2026; Colorado Secretary of State (TRACER), through Oct 26, 2026.
Source: Colorado Secretary of State (TRACER) campaign filingsUpdated Oct 26, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Tom Sullivan
- >99%
- Danielle Lammon
- <1%
- Projected margin
- D+22.1
The candidates
Tom Sullivan (D)
Incumbent, Colorado State Senate, first elected 2022Danielle Lammon (R)
Incumbent, Colorado State Senate, first elected 2022Danielle Lammon (R)
Also on the ballot: Michele Poague (Libertarian), 1.9%