Yellowstone County, Montana

Montana House District 50

2 candidates are tracked for Montana House District 50 on the November 3, 2026 ballot: Stewart Harris and Mark Peters. Candidate information follows official Yellowstone County election filings; verify with the official election office linked below.

About this race

Stewart Harris (Republican), Mark Peters (Democratic) are on the November 3, 2026 ballot for Montana House District 50. 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 › Yellowstone County › Montana House District 50

Stewart Harris

Republican

Top priorities

Fiscal responsibility and protecting taxpayers
Bring accountability and a customer-service focus back to government
Responsible natural resource development for jobs and affordable energy

Per the campaign site.

Biography

Stewart is a fifth-generation Montana banker who was born and raised in Billings, per his campaign site. He graduated from the U.S. Air Force Academy and served six years as an Air Force intelligence officer before returning home to work at his family's bank.

Campaign site (opens in a new tab)

Mark Peters

Democratic

Biography

Mark Peters is the Democratic nominee for Montana House District 50 on the November 3, 2026 ballot, per the Montana Secretary of State's 2026 candidate list. No campaign website was found as of September 17, 2026.

Next on your ballotMontana House District 51

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Voting info and more

Questions about this race

Who is running for Montana House District 50 in 2026?

When is the Montana House District 50 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 Yellowstone 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 Yellowstone 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 Yellowstone County sample ballot and your exact ballot by address.

The rest of your Yellowstone County ballot

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

Also on your ballot

Montana House District 52 Montana House District 53 Montana House District 54 See all 27 Yellowstone County races

Candidate profiles

Stewart Harris, full profile Mark Peters, full profile Official Montana election office