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Idaho's Senate Seat Has More Choices Than the Primary Showed

Idaho's closed Republican primary is over, but the November ballot has five candidates: the Republican incumbent, the Democratic nominee, a Libertarian, and two independents. If you're one of Idaho's 270,000-plus unaffiliated voters, the general election is where your vote counts. Here's who's running and what's at stake.

Voter education from Independent Center Voice. We don't endorse candidates. We help independent voters see their options.

Why This Race. Why Now.

Idaho is one of the most reliably Republican states in the country. A Democrat hasn't won a U.S. Senate race here in more than half a century, Republicans hold supermajorities in the legislature, and the incumbent won his last race by roughly 30 points. In a state like this, the contest most people pay attention to—the closed Republican primary—is over by May, and a quarter-million unaffiliated voters never get a say in it. That makes the November general election the one moment when every registered Idahoan, regardless of party, is choosing from the same full ballot. This page lays out that choice. We don't tell you the race is close; we tell you it's yours.

~1.02M

Registered voters in Idaho

61.5%

Registered Republican—a one-party-dominant state by registration

272,809

Unaffiliated voters (26.7%)—more than double the registered Democrats

1974

The last time Idaho elected a Democrat to the U.S. Senate

Idaho's closed primary already decided who Republicans nominated. The general election in November is the first time every registered Idahoan—including the quarter-million registered with no party—sees the same ballot.

Who's on Your 2026 Ballot

We track every candidate on Idaho's 2026 general-election ballot for U.S. Senate—the Republican, the Democrat, the Libertarian, and both independents. We provide this information so independent voters can make an informed choice. Independent Center Voice does not endorse candidates. Information below is sourced from each candidate's public statements and campaign materials, and is provided in the same structure for everyone on the ballot.

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Democrat

David Roth

Idaho Falls resident; consultant; the party's 2022 U.S. Senate nominee and a prior candidate for the Idaho Legislature (2020) and U.S. House (2024)

Previously ran: Idaho Legislature (2020), U.S. Senate (2022), U.S. House (2024)

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None / Independent

Todd Achilles

Grew up on a family farm; U.S. Army veteran (armor officer / tank commander) [ICV staff to populate fuller, verified bio from campaign materials]

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Libertarian

Matt Loesby

Grew up in suburban Denver, Colorado; worked in video game development before moving to Idaho's Treasure Valley in 2020; active with the Libertarian Party of Idaho.

Libertarian candidate for Idaho's 1st Congressional District, 2024.

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None / Independent

Natalie Fleming

Spent childhood summers on a family ranch in Christmas Valley, Oregon, and attended junior high and high school in Moscow, Idaho. Worked in the technology industry early in her career at WordPerfect and Novell.

First run for office, 2026.

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Republican

Jim Risch

U.S. Senator since 2009; chair of the Senate Foreign Relations Committee; former Idaho governor and lieutenant governor

U.S. Senate: 2008, 2014, 2020; Idaho Governor 2006; Lieutenant Governor multiple terms

What's Actually at Stake in Idaho's 2026 Senate Race

Based on voter file data and our 2026 Tuned In polling, here are the issues Idaho voters say will shape their vote. We don't tell you what to think about them. We do tell you they matter.

Government Accountability

Term limits, money in politics, and congressional stock trading—the structural-reform questions that cut across party lines.

Guns & Personal Freedom

Second Amendment questions and the broader Idaho preference for limited government in private life.

Taxes & the National Debt

Federal spending, the debt, and the tax code—consistently among the top concerns in the Idaho voter file.

Public Lands & the Outdoors

A defining Idaho issue across the spectrum: whether federal public lands stay public, and how they're managed.

Cost of Living & Housing

Wages, prices, and a housing market that has climbed sharply as Idaho has grown—and what federal policy does or doesn't do about it.

Border & Immigration

By far the most-flagged issue in the Idaho file—more than half of voters carry it. Federal border policy and immigration enforcement are squarely on the Senate's docket.

You're Not Alone—and You're Not Small

272,809 Idahoans are registered with no party at all—more than double the number registered as Democrats.

Idaho registers voters by party, and the numbers tell a story the headlines miss. There are 272,809 Idahoans registered with no party at all—more than double the number registered as Democrats. Unaffiliated voters are the second-largest registration bloc in the state, and in a closed-primary system they're the ones most often shut out of the contest that decides things. The general election is the one place that imbalance disappears: every registered Idahoan, of every affiliation, gets the same ballot and the same say. The most consequential thing an independent-minded Idahoan can do is make sure they're registered and that they show up for it. Independent Center Voice exists for voters like you. We poll independent voters so their views get counted. We help independent voters understand their options. And we push for the reforms—open primaries, fair ballot access, government accountability—that put unaffiliated voters back at the center of the process.

Join the Independent Center Voice

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Last Updated:
June 15, 2026