2 candidates are tracked for Idaho House District 12 Seat A on the November 3, 2026 ballot: Sterling Barnett and Jeff Cornilles. Candidate information follows official Canyon County election filings; verify with the official election office linked below.
Sterling Barnett (D), Jeff Cornilles (R) are on the November 3, 2026 ballot for Idaho House District 12 Seat A. Jeff Cornilles is the sitting member, per the Idaho Legislature's membership roster. Party nominees were chosen at the May 19, 2026 primary, per the Idaho Secretary of State's candidate filing portal.
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. The sitting officeholder, Jeff Cornilles, is on the ballot.
Idaho › Canyon County › Idaho House District 12 Seat A
Sterling Barnett is the Democratic nominee for Idaho House District 12 Seat A on the November 3, 2026 ballot, per the Idaho Secretary of State's candidate filing portal. No campaign website was found as of September 17, 2026.
Top priorities
Per the campaign site.
Jeff works in life and employee benefits sales in Nampa and is serving his second term in the Idaho House, per the Idaho Legislature. He is vice chair of the Local Government Committee and also serves on Business and Revenue & Taxation, per the Idaho Legislature.
Who is running for Idaho House District 12 Seat A in 2026?
2 candidates are tracked for Idaho House District 12 Seat A on the November 3, 2026 ballot: Sterling Barnett and Jeff Cornilles. Candidate information follows official Canyon County election filings; verify with the official election office linked below.
When is the Idaho House District 12 Seat A election in Idaho?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Idaho are on the Idaho election hub at theballotbrief.com.
How do I see my exact Canyon 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.
Candidate roster from official Canyon County and state election office filings, last verified September 27, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Idaho election office, or see the full Canyon County sample ballot and your exact ballot by address.
24 tracked races in Canyon County, Idaho. Landed here from another county's search? Look up your own ballot below.