Did Barnett face a primary challenge?

No. He ran unopposed in the May 19, 2026 Democratic primary and received 811 votes, or 100 percent of ballots cast, according to the Idaho Secretary of State.

Who is his general election opponent?

Republican Jeff Cornilles, who won his own primary unopposed with 3,123 votes, or 100 percent of ballots cast, per certified primary results.

Has Barnett reported any campaign money?

His 2026 filings on the Sunshine portal show $0.00 in contributions, loans, expenditures, and cash balance, with $0.00 in outstanding debt, as of his last filed report.

Democrat

Sterling Barnett

Idaho House of Representatives, District 12 Seat A

Nampa

Sterling Barnett: Democratic nominee for Idaho House District 12, Seat A

Sterling Barnett is the Democratic nominee for Idaho House District 12, Seat A, on the November 3, 2026 general election ballot. He won the May 19, 2026 Democratic primary unopposed, receiving 811 votes, or 100 percent of ballots cast, according to certified Idaho Secretary of State results. His general election opponent is Republican Jeff Cornilles, who also won his primary unopposed with 3,123 votes. Barnett's full name on file with the state is Sterling Noralee Barnett.

Campaign finance

Barnett's 2026 campaign finance filings, filed through Idaho's Sunshine system, show $0.00 in contributions, $0.00 in loans, $0.00 in expenditures, and a $0.00 cash balance as of his last filed report. His filings also show $0.00 in outstanding debt.

Sources

Idaho Secretary of State, certified May 2026 primary election results, supporting primary vote totals for Barnett and Cornilles
Idaho Secretary of State Sunshine portal, campaign finance filings, supporting Barnett's reported financial totals and his full name on file
Idaho Secretary of State Elections Database, candidate canvass records

Profile published by IdahoVoters.com. Last updated September 26, 2026. This profile will be updated as additional information becomes available.

Frequently asked questions

What office is Sterling Barnett running for?: He is the Democratic nominee for Idaho House District 12, Seat A, on the November 3, 2026 general election ballot, per certified Idaho Secretary of State results.
Did Barnett face a primary challenge?: No. He ran unopposed in the May 19, 2026 Democratic primary and received 811 votes, or 100 percent of ballots cast, according to the Idaho Secretary of State.
Who is his general election opponent?: Republican Jeff Cornilles, who won his own primary unopposed with 3,123 votes, or 100 percent of ballots cast, per certified primary results.
Has Barnett reported any campaign money?: His 2026 filings on the Sunshine portal show $0.00 in contributions, loans, expenditures, and cash balance, with $0.00 in outstanding debt, as of his last filed report.

Also on the ballot in District 12

Every candidate for the State Senate and both House seats in this district. See the full District 12 page.

RepublicanBen AdamsSenate
DemocratCurtis JamesHouse Seat B
RepublicanJaron CraneHouse Seat B
RepublicanJeff CornillesHouse Seat A
DemocratKrystal FlippenceSenate