Phil Hart

Phil Hart: Republican Incumbent for Idaho Senate District 2

Phil Hart is a Republican member of the Idaho State Senate representing District 2, which covers Shoshone County and portions of Kootenai and Benewah counties in northern Idaho. Hart lives in Kellogg and is seeking re-election in the May 19, 2026 Republican primary. He assumed office on December 1, 2022, and his current term ends on December 1, 2026, as documented by Ballotpedia. Hart previously served four terms in the Idaho House of Representatives from 2004 to 2012.

Background

Hart earned a bachelor’s degree in civil engineering from the University of Utah in 1980 and a master’s degree in business administration from the Wharton School of the University of Pennsylvania in 1984. He has lived in northern Idaho since 1995, residing in Coeur d’Alene, Athol, and now Kellogg, per his Idaho Legislature biography. Hart owns Alpine Engineering, a structural and civil engineering firm, and is licensed as a professional engineer in approximately a dozen states. He is also MSHA certified for open-pit mining. He served seven years on the board of the Remington Water District in the Athol area. Hart has been affiliated with the American Legislative Exchange Council, Gun Owners of America, and the Wharton Alumni Association, according to Ballotpedia. He is also the author of a book titled “Constitutional Income: Do You Have Any?” challenging the legal basis of income taxation, as described on his campaign website.

Political Career

Hart first sought legislative office in 2002 as a Constitution Party candidate, losing to the Republican incumbent. Two years later, Hart switched to the Republican ticket and won a House seat, going on to serve on the House Tax Committee, as reported by the Spokesman-Review. He was re-elected to the Idaho House three additional times before redistricting ended his House tenure in 2012. Hart attempted a return to the legislature in 2018 but was ruled ineligible by the Secretary of State over a residency requirement; a district court judge later rescinded the ruling, and Hart’s name remained on the primary ballot but he lost to the incumbent, per the Spokesman-Review. In 2022 he shifted to a Senate bid, defeating Bill Hasz and Jon Cantamessa in the Republican primary and winning the general election on November 8, 2022, as documented by Ballotpedia. In 2024, Hart advanced through the Republican primary unopposed and defeated Democrat Tom Hearn in the general election, per Ballotpedia.

In the Idaho Senate, Hart currently serves as vice chair of the Senate Resources and Environment Committee and also sits on the Finance and Transportation committees, per the Idaho Legislature’s current membership records. During the 2023 session, his first term, he served on the Agricultural Affairs, Judiciary and Rules, and Transportation committees, as recorded by the Idaho Legislature.

On the Senate floor, Hart has been an active voice on tax legislation. During debate on a major income tax reduction bill in March 2025, he stated, “I see continued prosperity for the state of Idaho and I see the income tax as our least-desirable tax. I think we should continue to chip away at the income tax,” as quoted by the Spokesman-Review.

Policy Positions

Hart’s most consistently documented policy positions involve taxation, government size, federal land policy, and civil liberties. In his campaign materials, Hart has stated that he believes state government has grown too large and that he wants to pursue a constitutional amendment limiting state powers only to those explicitly enumerated in the state constitution, as described on his campaign website.

On taxes, Hart has long advocated for eliminating the state income tax. During his earlier House service, he authored legislation to eliminate the grocery tax and to replace the income tax with an increase in the sales tax, and wrote transparency legislation requiring school district checkbooks to be posted online.

On federal lands, Hart has supported the return of federally managed lands to the state of Idaho and has argued that food grown, produced, and sold within Idaho is beyond the authority of Congress to regulate. He authored the Farm Freedom Act in 2012 to advance that position, per his campaign website.

On civil liberties and privacy, Hart previously sponsored legislation prohibiting RFID chips in Idaho driver’s licenses and banning implementation of the federal Real ID card in Idaho. On education, Hart has expressed support for school choice, arguing that creating competition in the education marketplace would reduce the cost of public education and thereby lower property taxes.

Hart has expressed explicit support for using the Idaho Freedom Foundation’s legislative scoring methodology as a measure of conservative performance. On his campaign website, Hart described the IFF index as “a good measuring stick” for evaluating legislators and noted that during his final year in the House, his IFF score placed him in the top five percent, per his campaign website.

Political Alignment

Phil Hart is aligned with the far-right wing of the Idaho Republican Party. His political trajectory is itself a documented indicator: he first ran for office in 2002 on the Constitution Party ticket, a party whose platform rejects the constitutional legitimacy of the federal income tax and most federal regulatory authority, before switching to the Republican Party in 2004, as reported by the Spokesman-Review. He authored a book challenging the legal basis of income taxation and, beginning in 1996, stopped filing federal and state income tax returns for years while pressing a federal lawsuit asserting the income tax was unconstitutional, as documented by Wikipedia. His documented campaign positions call for a constitutional amendment limiting state powers to only those explicitly enumerated in the state constitution, a position at the far edge of Idaho Republican politics. He has also publicly touted alignment with the Idaho Freedom Foundation’s legislative index as a personal benchmark of conservative performance, per his campaign website. The combination of his Constitution Party origins, his anti-income-tax litigation, his explicit constitutional limitation agenda, and his IFF alignment places Hart at the far-right of Idaho’s political spectrum.

Campaign and Endorsements

Hart’s campaign website features endorsements from former Congressman Bill Sali, former Ambassador Alan Keyes, and Dick Heller, the plaintiff in the landmark Second Amendment case District of Columbia v. Heller. Ballotpedia did not identify formal endorsements in Hart’s 2024 primary or general election campaigns. Hart is running for re-election in the May 2026 Republican primary; no publicly announced primary challenger has been identified as of the publication of this profile.

Public Controversies

Phil Hart has a lengthy documented record of legal disputes related to taxation and property. Hart stopped filing both federal and state income tax returns in 1996 while he pressed a federal lawsuit challenging the income tax as unconstitutional. After the case was rejected, he resumed filing returns but continued to contest an order to pay more than $53,000 in back state income taxes, as documented by Wikipedia. An Idaho House ethics panel voted 6-1 in December 2010 to investigate Hart, and he was removed from the House Revenue and Taxation Committee during this period. At the time, Hart owed more than $53,000 to Idaho and an estimated $500,000 to the federal government, per Ballotpedia. Hart settled the federal tax dispute in July 2015, agreeing to make monthly and annual payments on his $586,000 debt; his Athol home was subsequently auctioned by the IRS in 2016 to satisfy the delinquent federal tax obligations. The state of Idaho indicated it would likely recover nothing from the settlement due to the federal government’s priority claim, as reported by the Spokesman-Review.

Separately, in 1996 Hart cut timber from state school endowment land to build his log home in Athol. A court found he was required to pay for the logs, and he never fully satisfied the resulting $22,827 judgment before the statute of limitations expired, per the Spokesman-Review.

In October 2024, two District 2 constituents submitted a letter to the Idaho Secretary of State requesting an investigation into whether Hart was residing at his registered Kellogg address, which had been under construction for several years. Hart stated he was present at the home nearly every day. The Secretary of State’s office closed the complaint after Hart provided proof of residency as required under state law, as reported by the Idaho Capital Sun.

FAQ

Who is Phil Hart, Idaho? Phil Hart is a Republican state senator representing District 2 in northern Idaho, which includes Shoshone County. He lives in Kellogg and has served in the Idaho Senate since December 2022. He previously served four terms in the Idaho House of Representatives from 2004 to 2012.

What district is Phil Hart in? Phil Hart represents Idaho Senate District 2, which covers Shoshone County and parts of Kootenai and Benewah counties in the Idaho Panhandle.

Is Phil Hart an incumbent? Yes. Hart is an incumbent Republican state senator seeking re-election in the May 19, 2026 Republican primary.

What committees does Phil Hart serve on? Hart serves as vice chair of the Senate Resources and Environment Committee and also sits on the Finance and Transportation committees.

What are Phil Hart’s political positions? Hart has publicly stated support for eliminating the state income tax, reducing the size of state government, returning federally managed lands to state control, and school choice. He has expressed support for the Idaho Freedom Foundation’s legislative index as a measure of conservative performance and has called for a constitutional amendment limiting state government powers to those explicitly enumerated in the state constitution.

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