Idaho Senate Race: Margin of Victory
Idaho holds a U.S. Senate election on November 3, 2026, with the state’s reliably Republican lean setting the baseline expectation. The contest will decide not just who wins but by how much, a detail that matters for reading the broader national mood. Idaho’s deep-red electorate makes an outright upset unlikely, shifting focus to the scale of the winning margin.
Why Markets Are Watching
A lopsided result would reinforce Idaho’s status as a GOP stronghold untouched by national swings. A narrower-than-expected margin, however, could signal shifting voter sentiment, turnout anomalies, or discontent that extends beyond this single race. Watchers use margin data from safe states like Idaho as a baseline for measuring volatility elsewhere.
How Prediction Markets Frame the Outcome
Rather than asking only who wins, this market isolates the winning margin itself as the tradeable variable, breaking the outcome into specific victory-margin brackets. That structure lets participants express views on landslide-versus-competitive scenarios independent of the binary winner question. It effectively measures expectations about turnout strength and enthusiasm gaps between the parties in a race with little doubt about which side prevails.
Related terms
Total Volume
$25.1k
Kalshi $21.6k · Polymarket $3.5k
Leading Market
Risch, 3+ pts
Kalshi 83%
Risch, 3+ pts Volume
$382.63
Kalshi $382.63
Risch, 3+ pts 24h Change
-6.00%
Kalshi -6.00%
Calculate Your Potential Return
| Market | Kalshi Yes | Kalshi Fee | Kalshi Payout | Polymarket Yes | Polymarket Fee | Polymarket Payout |
|---|---|---|---|---|---|---|
| Risch, 3+ pts | 93.3¢ | 7.0% |
|
— | — | — |
| Risch, 5+ pts | 91.7¢ | 7.0% |
|
— | — | — |
| Risch, 9+ pts | 79.0¢ | 7.0% |
|
— | — | — |
| Risch, 7+ pts | 86.0¢ | 7.0% |
|
— | — | — |
| Risch, 11+ pts | 71.0¢ | 7.0% |
|
— | — | — |
* Estimates if candidate wins. Actual returns may vary.
All Markets
Emerging News
Elections
Idaho Democrat David Roth withdraws from U.S. Senate race, clearing path for independent Achilles
PN Team • 2 months ago
Idaho Democrat David Roth has formally withdrawn his name from the November general election ballot in the U.S. Senate race against Republican incumbent Jim Risch. Roth submitted his withdrawal on Aug. 28, citing a lack of support from the Democratic Party, after announcing in July he was ending his campaign. Roth said he faced pressure from Ada County Democratic leaders and supporters of independent candidate Todd Achilles, who argue an independent has a better shot at unseating Risch in a head-to-head race. Roth did not endorse Achilles and expressed frustration that party leaders backed a candidate other than their own primary winner.
Roth's campaign had raised about $14,600 with roughly $10,100 in debt as of June 30. Achilles has reported raising close to $700,000, while Risch's campaign held more than $4.4 million. The Senate race will now feature Risch, Achilles, independent Natalie Fleming, and Libertarian Matt Loesby on the general election ballot.
Sources:
Sentiment
- Idaho Democratic Party Ada County Democratic leaders are depicted pressuring Roth to withdraw despite him being the party's own primary winner, suggesting internal disarray.
- Democratic Party (United States) Democratic Party leaders are portrayed as sidelining their own primary winner in favor of an independent, reflecting internal party dysfunction.
- Jim Risch Risch is shown as a strong incumbent with a large campaign war chest, reinforcing his dominant position.
- Independent politician Independent candidates are mentioned as benefiting from the withdrawal, a mostly neutral factual point.
- Republican Party (United States) Republican incumbent Risch is mentioned mainly as the target of opposition, with neutral factual framing.
- Idaho Idaho is the neutral geographic setting for the Senate race.
- United States Senate The U.S. Senate race is the neutral factual context for the article.
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Elections
Internal Poll Shows Risch Holding Large Lead in Idaho Senate Race
PN Team • 1 week ago
An internal poll conducted by Peak Insights for Sen. Jim Risch (R-ID) shows him leading independent challenger Todd Achilles by roughly 27 points, 54% to 27%, with 10% undecided, among 500 likely voters surveyed Oct. 13-15. Risch is seeking a fourth term. Achilles, a former Democratic state legislator, re-registered as an independent after Idaho's Democratic Senate primary winner dropped out to support his bid. The race mirrors a broader 2026 strategy of Democratic-aligned candidates running as independents in red states, including Montana and South Dakota, alongside Nebraska's Dan Osborn, following a tactic Democrats used in 2024.
Sources:
Sentiment
- Jim Risch Risch is shown holding a commanding 27-point lead, a strongly favorable portrayal.
- Republican Party (United States) Risch's large polling lead reflects positively on the Republican incumbent's standing.
- Democratic Party (United States) Democratic-aligned strategy of backing independents is mentioned as a tactic, framed somewhat as a workaround after their primary winner dropped out.
- Idaho Idaho is referenced as the location of the Senate race without reputational framing.
- Independent politician Independent politician label is referenced as a category describing the strategy used by Achilles and others, factually presented.
- Montana Montana is mentioned only as another state with a similar independent candidate strategy.
- Nebraska Nebraska is mentioned briefly in reference to Dan Osborn's similar campaign strategy.
- South Dakota South Dakota is listed as another state following the same political strategy, with no specific evaluation.
- United States Senate The U.S. Senate is mentioned only as the context of the race, with no evaluative content.
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Elections
Idaho readers debate nuclear waste, abortion ballot measure and congressional races
PN Team • 2 months ago
A batch of reader letters published by the Idaho Statesman weighs in on several hot-button issues ahead of Idaho's November election. Writers criticized Gov. Brad Little over reported plans to accept nuclear waste storage in the state, warning of risks to water supplies, while others addressed the 1st Congressional District race between Rep. Russ Fulcher and challenger Kaylee Peterson, focusing on abortion and reproductive rights records. Sen. Jim Risch's long tenure and age drew criticism from a letter backing independent challenger Todd Achilles, and another writer accused national GOP leadership of drifting from its traditional roots while calling for structural election reforms like ending gerrymandering and adopting ranked-choice voting.
Letters also split sharply on Proposition 1, Idaho's "Reproductive Freedom and Privacy Act," with one writer arguing it effectively legalizes abortion with few limits, and another defending it as necessary to protect medical care for pregnancy complications and reduce legislative interference in health decisions.
Sources:
Sentiment
- Jim Risch Risch is directly criticized for his long tenure and age by a letter writer backing his challenger.
- Republican Party (United States) A letter accuses national GOP leadership of drifting from its traditional roots, casting the party in a critical light.
- United States Senate Sen. Jim Risch's Senate tenure is criticized for length and age in a reader letter.
- Independent politician Independent challenger Todd Achilles is mentioned as an alternative to Risch, with a neutral factual framing.
- United States Congress Congress is referenced tangentially through the congressional race and Senate discussion without strong evaluative content.
- Idaho Idaho is the setting for the debate over nuclear waste and ballot measures, mentioned factually without direct reputational judgment.
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Elections
Idaho voters weigh in on public lands, ballot measures and Senate races ahead of election
PN Team • 1 month ago
A collection of Idaho Statesman letters to the editor spans several live political issues ahead of upcoming elections. One writer urges Senators Crapo and Risch and Rep. Fulcher to back the Public Lands Integrity Act, arguing it protects access, biodiversity and local stewardship while supporting farmers, ranchers and hunters. Another questions the state legislature's use of an advisory ballot question to designate an official "state gun," arguing lawmakers should instead focus on affordability issues like groceries, housing and health care.
On Idaho's Proposition 1, an embryologist writes in support, framing the measure as protecting patient autonomy in pregnancy decisions. Separate letters address U.S. Senate politics: one criticizes Senator Risch's Ukraine funding record and calls for a clearer strategy from the Senate Foreign Relations Committee chairman, while another accuses Risch of avoiding a debate with independent challenger Todd Achilles. A final letter endorses independent gubernatorial candidate John Stegner over incumbent Brad Little, explaining Idaho's plurality voting system ahead of the Nov. 3 election.
Sources:
Sentiment
- Jim Risch Risch is directly criticized for his Ukraine funding record and for avoiding a debate with his challenger.
- United States Senate Senate is referenced amid criticism of Risch's committee leadership and debate avoidance, giving slightly negative context.
- Idaho Idaho is the setting for the ballot measures and elections discussed, a neutral geographic reference.
- United States The United States is referenced generally via Senate and House institutions without specific reputational implication.
- United States House of Representatives Rep. Fulcher is mentioned as a House member being urged to support legislation, a neutral factual reference.
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Elections
Florida sets key deadlines for 2026 midterm election
PN Team • 4 weeks ago
Florida election officials have outlined the key dates voters need to know ahead of the 2026 midterm. The deadline to register to vote, or to update a name, address, or party affiliation, is Oct. 5. Voters who want to cast a mail-in ballot must request one by Oct. 22. Early voting runs from Oct. 24 through Oct. 31, with Election Day set for Nov. 3.
To be eligible, a voter must be a U.S. citizen and Florida resident at least 18 years old, not be deemed mentally incapacitated for voting purposes, and not have an unrestored felony conviction. Registration can be completed online, at tax collector's offices that issue Florida driver's licenses or state ID cards, through designated voter registration agencies, or by mail. Local supervisors of elections, including in Leon County, are extending office hours on the registration deadline day to accommodate last-minute registrants. Turnout for Florida midterms historically trails presidential-year turnout significantly, with the 2026 ballot set to decide the governor's race, legislative control, and congressional seats.
These deadlines matter for prediction markets tracking turnout and registration trends ahead of Florida's competitive 2026 races.
Sources:
Sentiment
- Florida Central location of the article, portrayed neutrally as organizing a routine election process.
- Ron DeSantis Mentioned indirectly through the governor's race being decided, without direct commentary on him.
- United States House of Representatives Referenced neutrally as congressional seats are part of what the 2026 ballot will decide.
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Elections
Independent Bill Hill trails Rep. Nick Begich in Alaska House race after primary
PN Team • 2 months ago
Alaska's U.S. House primary has narrowed to a general-election contest between Republican incumbent Nick Begich, independent Bill Hill, an incarcerated New York Democrat, and a Fairbanks Libertarian, after several Democratic contenders dropped out. Certified results showed Begich winning the primary with 44.6% to Hill's 32.5%, a 12-point gap. Anchorage Democrat Matt Schultz, the party's former front-runner, suspended his campaign in July, citing weak institutional support, and endorsed Hill; other Democratic candidates also withdrew to consolidate anti-Begich votes.
Hill, a Dena'ina Athabascan educator and fisherman, is campaigning on healthcare costs and inflation while also backing oil and gas development alongside renewables. Begich, part of a prominent Alaska political family who unseated Mary Peltola in 2024, is running on legislative wins including energy development measures and the Trump-backed tax and spending law. Begich holds a large fundraising edge. Political analysts are split: some see a plausible path for Hill given Alaska's heavy independent registration and a national climate favoring Democrats and independents, while others call Begich's reelection all but certain under Alaska's ranked-choice general election system.
Sources:
Sentiment
- Democratic Party (United States) Democratic candidates withdrew due to weak institutional support, a mildly unfavorable portrayal.
- Independent politician Independent candidate Bill Hill is framed as having a plausible path amid favorable conditions for independents.
- Mary Peltola Mary Peltola is mentioned as having lost her seat to Begich, a negative reference to her political standing.
- Donald Trump Trump's tax and spending law is cited as a legislative achievement Begich campaigns on.
- New York (state) An incarcerated New York Democrat running in the race is a mildly unfavorable detail tied to the state reference.
- Republican Party (United States) The Republican incumbent is leading comfortably in the primary, a favorable position.
- Alaska Alaska is the setting of the race, described neutrally with mention of its political dynamics.
- Anchorage, Alaska Anchorage is mentioned as the hometown of a withdrawn candidate, a neutral factual detail.
- United States Congress Referenced only as context for the House race, without direct reputational impact.
- United States House of Representatives The article centers on a House race but treats the institution neutrally.
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Elections
Ehardt faces Democratic challenger Marshall in Idaho House District 33A race
PN Team • 1 week ago
Incumbent Republican Rep. Barbara Ehardt, a former Division I basketball coach and Idaho Falls City Council member, faces Democratic challenger Chance Marshall, a former Bonneville Young Democrats president, for Idaho House District 33A in the Nov. 3 general election. Ehardt emphasizes parental rights, tax relief, water infrastructure and support for the INL; Marshall prioritizes affordability, education funding, healthcare and housing. The candidates diverge sharply on Proposition 1, the ballot initiative to repeal Idaho's abortion ban, and HJR 4, which would restrict citizen initiatives on drug policy. Water management for drought-hit eastern Idaho reservoirs remains central. Idaho's absentee ballot and voter registration deadline is Oct. 23, with early and in-person voting also available ahead of Election Day.
Sources:
Sentiment
- Democratic Party (United States) Marshall is identified as a Democrat running for office, a neutral factual mention.
- Republican Party (United States) Ehardt is identified as the incumbent Republican candidate, a neutral factual mention.
- Idaho The article centers on an Idaho legislative race and state ballot measures, a neutral geographic context.
- State governments of the United States The article discusses a state legislative race and ballot measures, a neutral reference to state governance.
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Elections
Idaho Republicans outraise Democrats in all statewide 2026 races
PN Team • 4 weeks ago
Republican candidates running for statewide office in Idaho's November general election hold a clear fundraising edge over their Democratic and independent challengers, according to state campaign finance reports.
Incumbent Gov. Brad Little leads all statewide candidates, having raised just over $2.3 million in 2026, with no other candidate approaching $1 million. Among Little's challengers, independent John Stegner has raised $516,520 and Democrat Terri Pickens has brought in $217,520.
Little's contributions are split roughly evenly between individuals (about $1.2 million) and companies (nearly $1.1 million), with the remainder from political action committees; most of his money, about $1.7 million, came from within Idaho. Stegner and Pickens each drew a much larger share of their funds from individual donors rather than companies, and both raised the bulk of their contributions in-state as well.
The fundraising gap underscores the Republican Party's continued financial dominance in Idaho politics ahead of the November 3 general election.
Sources:
Sentiment
- Republican Party (United States) The Republican Party is depicted as dominant in fundraising across all statewide races, a favorable portrayal.
- Democratic Party (United States) Democrats are portrayed as trailing significantly behind Republicans in fundraising, a mildly unfavorable comparison.
- Idaho Idaho is mentioned as the setting for the political fundraising story without particular reputational slant.
- Independent politician Independent candidate Stegner is mentioned with modest fundraising, a neutral factual detail.
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Elections
Pocatello Democrats hold town hall on affordability, Proposition 1
PN Team • 1 week ago
Idaho District 29 Democratic candidates Sen. James Ruchti, Mary Shea, and former Rep. Nate Roberts held a town hall in Pocatello, drawing 40-50 attendees to discuss affordability ahead of November's general election. Questions ranged from Proposition 1, the abortion-related ballot initiative, to healthcare, Medicaid, housing costs, and wages. Shea clarified the measure would not override Idaho's parental-consent laws for minors. Candidates criticized state income tax cuts, estimated at $4.5 billion over five years, arguing the revenue could have funded affordable housing and childcare instead. Roberts also called for repealing Idaho's right-to-work law to raise wages. The candidates face Republican opponents John Crowder, Dustin Manwaring, and Jennifer Miles.
Sources:
Sentiment
- Democratic Party (United States) Democratic candidates are portrayed as engaged and responsive on affordability issues at the town hall.
- Idaho Idaho is referenced factually in relation to state tax policy and laws criticized by candidates.
- Republican Party (United States) Republican opponents are mentioned as the electoral rivals without further detail, giving a mildly tangential framing.
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Pickens, Stegner call for reversing Little’s policies at Idaho governor forum
PN Team • 3 weeks ago
Democrat Terri Pickens and independent John Stegner, both candidates for Idaho governor, used a Boise candidate forum to outline plans to reverse several policies of Republican Gov. Brad Little ahead of the Nov. 3 election. Little did not attend the League of Women Voters-sponsored event, despite organizers leaving an empty chair for him.
Pickens said she would prioritize a budget restoring funding for mental health services, Medicaid expansion, and public education following recent legislative cuts. Stegner, a retired Idaho Supreme Court justice, said he would move to repeal the Idaho Parental Choice Tax Credit, a school-voucher law Little signed in 2025, calling it unconstitutional.
The two candidates largely agreed on major issues, both backing Proposition 1 to restore abortion rights in Idaho and opposing two legislature-backed constitutional amendments: one restricting ballot initiatives on marijuana legalization and another making English Idaho's official language. Other candidates in the race include Libertarian Paul Sand, Constitution Party candidate Pro-Life (formerly Marvin Richardson), and write-in candidate Jacob Burnett.
Sources:
Sentiment
- Republican Party (United States) The Republican governor's policies are criticized and he is depicted as absent from a public forum, reflecting negatively on the party.
- Democratic Party (United States) Democratic candidate Pickens is portrayed as proactively proposing restorative policy measures, a mildly favorable framing.
- Independent politician Independent candidate Stegner is depicted as a credible former justice advancing a clear legal argument.
- Boise, Idaho Boise is mentioned only as the location of the forum, a neutral factual reference.
- Idaho Idaho is referenced factually as the state holding the gubernatorial race without specific reputational framing.
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Leading:
90.3%
Moore, 11+ pts
Vol $8.00
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Leading:
95.4%
Democrats, 16+ pts
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