The Ballot Brief
Cascade County, Montana

Montana Senate District 12

2 candidates are tracked for Montana Senate District 12 on the November 3, 2026 ballot: Mindy Leach and George Nikolakakos. Candidate information follows official Cascade County election filings; verify with the official election office linked below.

About this race

Mindy Leach (Democratic), George Nikolakakos (Republican) are on the November 3, 2026 ballot for Montana Senate District 12. The state's list marks no incumbent for this seat. Party nominees were chosen at the June 2, 2026 primary, per the Montana Secretary of State's 2026 candidate list.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot.

Montana › Cascade County › Montana Senate District 12

Mindy Leach

Democratic

Top priorities
  • Supports access to quality, affordable health care and protecting the doctor-patient relationship
  • Supports small businesses and addressing the rising costs of food, fuel and housing
  • Supports investment in public schools and workforce development

Per the campaign site.

Biography

Mindy is an optometrist and small business owner who has served the Great Falls community for more than 35 years, including offering free infant eye exams since 2005, per her campaign site. She is a member of the Great Falls Chamber of Commerce, the Montana Optometric Association and the American Optometric Association, per her campaign site.

George Nikolakakos

Republican

Biography

George Nikolakakos is the sitting Montana state representative for House District 22 and is the Republican candidate for Senate District 12 in Cascade County, per the Montana Legislature and Montana election coverage. No campaign website was found as of September 21, 2026.

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Questions about this race

Who is running for Montana Senate District 12 in 2026?

2 candidates are tracked for Montana Senate District 12 on the November 3, 2026 ballot: Mindy Leach and George Nikolakakos. Candidate information follows official Cascade County election filings; verify with the official election office linked below.

When is the Montana Senate District 12 election in Montana?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Montana are on the Montana election hub at theballotbrief.com.

How do I see my exact Cascade County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Cascade County and state election office filings. Bios and priorities carry their attribution inline.

Cross-check with the official Montana election office, or see the full Cascade County sample ballot and your exact ballot by address.

The rest of your Cascade County ballot

15 tracked races in Cascade County, Montana. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
Montana House District 20Montana House District 21Montana House District 22See all 15 Cascade County races
Candidate profiles
Mindy Leach, full profileGeorge Nikolakakos, full profileOfficial Montana election office