Gregory Diacogiannis

Gregg Diacogiannis: Republican Challenger for Idaho House District 9B

Gregg Diacogiannis is a Republican challenger running for the Idaho House of Representatives in District 9B. Diacogiannis lives in Fruitland, in Payette County, and is seeking to unseat incumbent Representative Judy Boyle in the May 19, 2026 Republican primary. This is his second consecutive campaign for the seat; he previously ran as a write-in candidate in the 2024 general election, where Ballotpedia records show Boyle defeated him along with Democratic candidate Jody Keeler. Democrat Lupita Connor is running in the general election.

Background

Diacogiannis grew up in Tacoma, Washington, and, according to his campaign website, joined the U.S. Army as an infantryman in 2004 after high school, serving two tours in Iraq with the 2-69th Armor out of Fort Benning, Georgia. Following his military service, he held a range of jobs including retail management and high-threat security work in Afghanistan, and is currently employed as a regional truck driver for Woodgrain. Diacogiannis relocated to Idaho in 2019, settling in Payette County because his wife Kayla grew up in Fruitland, per his campaign biography. He and Kayla homeschool their children, a fact he references in his education policy positions.

Political Career

Diacogiannis has not held elected office. He ran against incumbent Judy Boyle in the 2024 general election for Idaho House District 9B as a write-in candidate, where Ballotpedia records show Boyle defeated him along with Democratic candidate Jody Keeler. He filed again for 2026, setting up a direct Republican primary challenge against Boyle for the May 19 ballot.

Policy Positions

Diacogiannis has outlined his positions on several policy areas through his campaign website and a candidacy announcement published by the Gem State Chronicle in February 2026. On firearms, he supports a full repeal of the National Firearms Act and all laws he characterizes as infringing on the right to bear arms, as stated on his campaign website. He states that Idaho should lead in returning to what he describes as the original intent of the Second Amendment. On abortion, Diacogiannis describes himself as an "abortion abolitionist" and supports making all abortions illegal, including in cases of rape and incest. His campaign website states that "all of us are created in the image of God, and we should protect all life," and commits to voting for all bills that limit abortion with the stated goal of criminalizing all abortions in Idaho. On taxes, he supports eliminating both the property tax and the income tax in Idaho, replacing them with a flat sales tax that would exclude groceries and could not be increased over time, per his campaign website. His Gem State Chronicle candidacy announcement also listed repealing taxes on groceries and gas as part of a broader tax overhaul. On education, Diacogiannis supports school choice and a funding model that would allow dollars to follow each child to any school of the parents' choosing. He describes education as the sole responsibility of parents, as outlined on his campaign website. On immigration, his Gem State Chronicle candidacy announcement states that government should protect Idaho's workers and that all people in the country without legal status must be removed.

Political Alignment

The available evidence supports classifying Gregg Diacogiannis as a Far-Right Extremist within Idaho's political context, based on the combination of his documented rhetoric, his explicitly theological policy framing, and his financial ties to legislators at the outermost edge of the Idaho Republican caucus. His campaign messaging explicitly and repeatedly frames the sitting incumbent and the broader Republican legislative class as insufficiently conservative. His Gem State Chronicle candidacy announcement quotes him telling supporters: "The people we keep sending to Boise have gotten too comfortable with compromise. Compromise will be the death of Idaho and our way of life," and calls for "bold, unapologetic, Idaho First leadership." This is not an isolated statement but a consistent theme running through his public campaign materials. His abortion position carries explicit theological framing. His campaign website frames opposition to all abortion, including in cases of rape and incest, in terms of biblical creation: "all of us are created in the image of God" and "no child should pay for the sins of their father." This language frames a civil policy question in terms of biblical authority as a governing standard. His campaign has received an endorsement from Idaho Freedom PAC, the campaign arm of the Idaho Freedom Foundation, as documented in his own post on X. His campaign also received a financial contribution from Idaho State Senator Glenneda Zuiderveld, as documented in his campaign finance report filed with the Idaho Secretary of State. Zuiderveld is a confirmed member of the Idaho Gang of Eight, as listed in the Pocatello Chubbuck Observer's published membership roster, and is a member of the Idaho Freedom Caucus. A financial contribution from a sitting Gang of Eight legislator, combined with an Idaho Freedom PAC endorsement, places Diacogiannis firmly within the network of candidates at the far-right edge of Idaho Republican politics.

Campaign and Endorsements

Diacogiannis is campaigning under the slogan "Lead like an Infantryman, Serve like a Patriot," drawing on his military background as a central part of his public identity, as described on his campaign website. He has received an endorsement from Idaho Freedom PAC, as documented in his own social media. His campaign committee is the Gregg Diacogiannis Victory Fund, with Kayla Diacogiannis listed as treasurer. His campaign raises funds through Anedot and maintains a presence on Facebook and X. The general election is November 3, 2026.