Kent A. Marmon

Kent Marmon is a first-term Republican member of the Idaho House of Representatives representing District 11 Seat A, covering parts of Caldwell in Canyon County. Marmon took office December 1, 2024 after defeating incumbent Rep. Julie Yamamoto in the May 21, 2024 Republican primary. He is seeking re-election in the May 19, 2026 Republican primary. The general election is November 3, 2026.

Background

Per his Idaho State Legislature official biography, Marmon was born April 23, 1956 in Caldwell. He is a second-generation Caldwellite, a Caldwell High School graduate, and earned a B.S. in business administration from Northwest Nazarene University. He is retired, married 48 years to Sylvia, and has three children, fifteen grandchildren, and one great-grandchild. He served on the Caldwell City Council in the mid-1980s and on the Caldwell School Board, is a Kiwanis governor, an Eagle Scout, and a Silver Beaver Award recipient. His committee assignments are Business and Education. Per the official minutes of the Caldwell City Council Regular Meeting of May 4, 1987 (Book 28, pp. 62-63), Marmon was recalled from the Caldwell City Council on April 28, 1987 by a 2,101-to-858 (71-29 percent) margin.

Political Career

Per Ballotpedia, Marmon ran unsuccessfully for the Idaho House and Senate in 2010, 2012, 2014, and 2022 before his 2024 win. He defeated Rep. Julie Yamamoto in the May 21, 2024 Republican primary 56.8 percent (1,912 votes) to 43.2 percent (1,455 votes) and beat Anthony Porto 65.9 percent to 34.1 percent in the November 2024 general. Yamamoto had been a House Education Committee chair, a retired educator, and a charter-school board member.

Policy Positions

Bills Marmon has sponsored or co-sponsored since taking office include HJR 4 (2025), a constitutional amendment giving the legislature exclusive authority over psychoactive substances; HJM 17 (2026), calling on the U.S. Supreme Court to reverse Obergefell v. Hodges; H 238 (2025), mandating display of the Ten Commandments in public schools; H 557 (2026), pre-empting local-government antidiscrimination ordinances; H 601 and H 745 (2026), prohibiting taxpayer funding of government unions; HCR 28 (2026), establishing a state day of fasting and prayer; S 1059 (2025), defining "embryo," "fetus," and "preborn child" for wrongful-death and homicide statutes; and HJM 15 (2026), federal action on weather modification.

Political Alignment

Marmon is Idaho Freedom Foundation-aligned. The IFF Freedom Index scores his 2026 Freedom Score at 94.8 percent and his 2026 Spending Score at 94.2 percent, with a lifetime Freedom Score of 95.5 percent and a lifetime Spending Score of 97.1 percent. The Canyon County recorder's office holds a $17,200.05 federal tax lien recorded against Marmon on June 16, 2009 (Serial 553405709) for the 1993 tax year. A 2025 fire left Marmon's Caldwell home uninhabitable, as reported by KIVI, the Idaho State Journal, and the Post Register.

Campaign and Endorsements

Marmon is running in the May 19, 2026 Republican primary. Per the Idaho Sunshine portal, his 2026 campaign is supported by approximately $353 in independent expenditures from Citizens Alliance of Idaho PAC. Idaho EdNews has reported that Citizens Alliance of Idaho PAC draws substantial out-of-state funding, including a $450,000 transfer from a Virginia-based federal affiliate and Pennsylvania gaming-related sources. His 2024 campaign was supported by Citizens Alliance of Idaho PAC plus Young Americans for Liberty's Make Liberty Win field operation. Marmon's 2024 fundraising of approximately $39,455 was more than three times his 2022 cycle's $12,037. He is paired in District 11 with Rep. Lucas Cayler (Seat B). The general election is November 3, 2026.

About This Profile

For deeper background on Kent Marmon's electoral history, campaign-finance record, and 1987 Caldwell City Council recall, see the IdahoExtremism.org dossier on Kent Marmon.