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Will the Republicans win the Mississippi Senate race in 2026?

polymarketElections·2026-10-14·view on polymarket ↗
92%
Agent
92%
Market Price
-0.5%
Edge
72%
Confidence
73,277
Volume
1.0c
Spread
20
Days to resolution
13
Markets in event
final rationale
Mean of 2 draws (0.92, 0.92). (0) The condition is not met yet. The election is Nov 3, 2026, and AP, Fox and NBC have made no call. Hyde-Smith (R) faces Colom (D) and independent Ty Pinkins. (a) About three weeks remain until the election; the market resolves on the network calls or on certification. (b) Status quo strongly favors YES. Every major rater (Cook, Sabato, Inside Elections, Fox, RCP, Silver Bulletin, Split Ticket) rates the race Solid or Safe R, and DDHQ and The Economist rate it Likely R. Hyde-Smith has roughly a 3:1 cash edge, outspends Colom on ads, and has Trump's endorsement. Democrats have not won a Mississippi Senate race since 1982. (c) NO path: a strongly Democratic national environment (markets give Democrats about 63% for the Senate and 90% for the House), high Black turnout, and an unpopular incumbent hit by gaffes like the 'proteins' remark. Add a big surrogate push (Obama ads, Harris, Buttigieg, Warnock), and the R+3 to R+6 Democratic-sponsored polls prove accurate or understate Colom. (d) YES path: Mississippi's inelastic, racially polarized electorate holds, and Hyde-Smith wins by high single digits or more. Even the friendliest Democratic polls never show Colom ahead head-to-head. A runoff, if one occurred, is included in resolution and would likely favor her as it did in 2018. I anchor on the Polymarket price of 92.5%, which matches Kalshi at about 92%. I found no unpriced information to justify moving. The Democratic environment is real but already reflected in the market, and with no independent polling the uncertainty is symmetric.
price vs. prediction
market price agent forecast at t+0
4 follow-ups
re-scan context
This market has been scanned before. Previous predictions:
datepredictedmarket priceconfidence
2026-10-06 93% 92% 73%
2026-09-22 92% 93% 71%
1. Planner Opus 5.5 · picks the research tools
Tools chosen: polymarket_direct resolution_source kalshi_related polymarket_related wikipedia
Planner reasoning
Mississippi Senate 2026 (Hyde-Smith seat) is a safe-R state, so the Polymarket price is the main anchor. The Kalshi equivalent gives an independent crowd to compare against, and Wikipedia covers the nominees and historical margins for the base rate. Resolution depends on AP/Fox/NBC race calls.
2. Research parallel tool calls + 4 web research loops (Sonnet 5.5) · read raw by the forecasters
at a glance
RESEARCH DIGEST (built in code: tool summaries and each report's bottom line; the forecasters read the full tool outputs and reports) Tools - polymarket_direct: ## This Market's Polymarket Data **Will the Republicans win the Mississippi Senate race in 2026?** - Current price (probability): 92.50% (live; bid 92% / ask 93%) - 7-day price change: +0.00% - 30-day price change: +0.00% - Total volume: $73,277 (USD notional) - Price range: 90.50% - 94.50% - Data points: 91 days - resolution_source: already_resolved=unclear; matches_criteria=False; last_updated=Latest poll Aug 15, 2026; market and model pages checked about 10–12 days ago (early Oct 2026). The election hasn't happened yet. It is set for November 3, 2026, so no race has been called. Republican incumbent Cindy Hyde-Smith, who won her primary with 80.8%, faces Democrat Scott Colom, who won his with 73%. The latest public poll is - kalshi_related: 1 related markets / summaries. series KXSENATEMS: 0 markets (skipped 0 no-signal) | keyword 'Mississippi Senate': ok - polymarket_related: Polymarket search over 2 keyword(s), kept 10 matches. keyword 'Mississippi Senate': 5 markets | keyword 'Senate control 2026': 5 markets - wikipedia: Fetched 2 Wikipedia entries (0 missing pages). Research loops, bottom lines - current state: As of Oct 14, every major rater has the race at Likely R or safer. The only public polls, all Democratic-sponsored, show Hyde-Smith ahead by 3–13 points. Democrats are putting in national surrogate effort, but no evidence of a competitive public poll has surfaced. - base rate: Outside view is strongly Republican. There has been no Democratic Senate win in the state since 1982, GOP margins have run from 7 to 25 points in recent cycles, and all raters have it Safe/Solid R. The caveats are a Democratic-leaning national environment, thin Democratic-sponsored polling at R+3 to R+6, and a small runoff-timing risk. - yes case: The case for YES rests on baseline partisanship, a funding and spending edge for Hyde-Smith, and ratings at Solid/Safe R. Even Democratic-sponsored polling has her ahead, and the Kalshi market (a different venue) was around 92% for her on Oct 14. - no case: The strongest NO case is a wave scenario: a Democratic national environment, high Black turnout, a weak and unpopular incumbent, and a spoiler independent. Even so, the only polls are Democratic-sponsored and show Colom behind by 3–6. All raters have the race safe or solid, and there is no runoff-delay path.
tools
toolstatustimeitemssummary
polymarket_direct OK 0.7s 1 ## This Market's Polymarket Data **Will the Republicans win the Mississippi Senate race in 2026?** - Current price (probability): 92.50% (live; bid 92% / ask 93%) - 7-day price change: +0.00% - 30-day price change: +0.00% - Total volume: $73,277 (USD notional) - Price range: 90.50% - 94.50% - Data
resolution_source OK 10.3s 1 already_resolved=unclear; matches_criteria=False; last_updated=Latest poll Aug 15, 2026; market and model pages checked about 10–12 days ago (early Oct 2026). The election hasn't happened yet. It is set for November 3, 2026, so no race has been called. Republican incumbent Cindy Hyde-Smith, who won
kalshi_related OK 1.0s 1 1 related markets / summaries. series KXSENATEMS: 0 markets (skipped 0 no-signal) | keyword 'Mississippi Senate': ok
polymarket_related OK 0.6s 10 Polymarket search over 2 keyword(s), kept 10 matches. keyword 'Mississippi Senate': 5 markets | keyword 'Senate control 2026': 5 markets
wikipedia OK 0.4s 2 Fetched 2 Wikipedia entries (0 missing pages).
research loops · 4/4 ok · 16 searches · 7 page reads
dimensionstatustimesearchespage readsreport
current state OK 23s 4 0 4167 chars
base rate OK 18s 4 2 4159 chars
yes case OK 40s 4 2 4445 chars
no case OK 25s 4 3 6130 chars
report: current state
- [2026-10-14] Mississippi Today reports Kamala Harris will campaign for Democratic nominee Scott Colom in Columbus on Oct. 22. The same piece says the race has turned negative, with Hyde-Smith attacking Colom's ties to national Democrats and their surrogates. https://mississippitoday.org/2026/10/14/kamala-harris-to-campaign-in-columbus-for-scott-colom/ - [2026-10-13] CNN reports Obama has cut new ads for Democratic Senate candidates, Mississippi's among them. https://www.cnn.com/2026/10/13/politics/video/obama-mississippi-senate-race-new-ad - [2026-10-06/07] Ratings are Safe or Solid R at most outlets: Cook Solid R (Oct 6), Sabato Safe R (Oct 6), Inside Elections Solid R (Oct 1), Fox Solid R (Oct 6), RCP Solid R (Oct 5), Silver Bulletin Solid R (Oct 7), Split Ticket Safe R (Oct 7). Decision Desk HQ and The Economist rate it Likely R (Oct 7). https://en.wikipedia.org/wiki/2026_United_States_Senate_election_in_Mississippi - [2026-10-01] Mississippi Today reports Cory Booker is campaigning for Colom. Colom says national Democrats "know that Mississippi is in play." Earlier visits: Sens. Alsobrooks and Blunt Rochester for Colom, and Sen. John Kennedy and others for Hyde-Smith. https://mississippitoday.org/2026/10/01/sen-cory-booker-to-campaign-for-scott-colom-in-mississippi-senate-race/ - [2026-10-01] The Washington Post's headline says Mississippi Democrats "dare to wonder" if the seat is in reach. It notes no Democrat has won a Senate race in the state since 1982. https://www.washingtonpost.com/politics/2026/10/01/has-mississippi-long-dead-zone-democrats-been-revived-by-trump-voting-rights/ - [2026-09-21] Mississippi Today: the ballot is Hyde-Smith (R), Colom (D) and independent Ty Pinkins. Colom is running on economic discontent over tariffs, the Iran war and prices, citing Trump's cratered approval. Trump won the state by nearly 23 points in 2024. https://mississippitoday.org/2026/09/21/mississippi-midterms-senate-hyde-smith-colom/ - [2026-08-15] The only recent public poll is Data for Progress (D), fielded Aug 5–15 with 1,018 likely voters. Headline: Hyde-Smith 44, Colom 38. A version with leaners shows 47–41. Earlier Impact Research (D) polls: R+3 in April 2026 and R+13 in June 2025. No poll in the last 30 days. https://pollingsource.com/senate/MS - [2026-10-14] Aggregators (not primary sources) give Hyde-Smith roughly 98% (PoliAgg model, Oct 14) and 54.1–45.9 (Poliwave, about Aug). PoliAgg lists Polymarket among its markets. https://poliagg.com/race/us-senate-2026-ms/ - [2026-10-08] Colom called for suspending the federal gas tax. https://mississippitoday.org/2026/09/15/mississippi-2026-midterms-election-guide-senate-house-race-candidates-voting-deadline/ - [2026-03-10] Primaries: Hyde-Smith won with 80.8% (127,852 votes). Colom won with 72.9% (109,817 votes). Democratic primary turnout was about 150,000, versus 82,000 in 2024. Trump endorsed Hyde-Smith. https://en.wikipedia.org/wiki/2026_United_States_Senate_election_in_Mississippi - [2026-06-10] Fundraising: Hyde-Smith had raised about $4.7M by the primary, against $1.2M for Colom. She also has Trump's endorsement. Later figures: $4.52M raised per Ballotpedia, $3.83M per PollingSource. https://msindy.org/p/democratic-us-senate-challenger-says - [2020 baseline] Hyde-Smith won 54.1–44.1 in 2020. Wicker won by 25.6 points in 2024. https://ballotpedia.org/United_States_Senate_election_in_Mississippi,_2026 - [Schedule] The general election is Nov 3, 2026. Mississippi Today says Colom challenged Hyde-Smith to debates and called her "chicken," so debates may not happen. The resolution sources are AP, Fox and NBC. BOTTOM LINE: As of Oct 14, every major rater has the race at Likely R or safer. The only public polls, all Democratic-sponsored, show Hyde-Smith ahead by 3–13 points. Democrats are putting in national surrogate effort, but no evidence of a competitive public poll has surfaced. NOT FOUND: Any public poll after Aug 15, 2026. Any confirmed debate schedule. Fetchable full text of the Sept 21 Mississippi Today article (it returned 403; its content is from the search snippet). Any AP, Fox or NBC call, which is not expected before Nov 3.
report: base rate
- [2026-10-13] Every race-rating outlet I found has Mississippi at the safest tier. Sabato rates it Safe R. The Mississippi Free Press said Silver Bulletin does not treat Mississippi as a possible flip. The DSCC has not committed money to Colom (fetched). https://www.mississippifreepress.org/cory-booker-joins-scott-colom-to-mobilize-voters-as-democrats-eye-mississippis-senate-race/ - [2026-10-13] Ballotpedia's ratings: Cook Solid R, Inside Elections Solid R, Sabato Safe R, DDHQ pending. The last dated table is March 2026, and the Cook page was last updated Apr 27, 2026. Ballotpedia lists Hyde-Smith (R), Colom (D) and independent Ty Pinkins on the ballot. https://ballotpedia.org/United_States_Senate_election_in_Mississippi,_2026 - [2026-10-13] The Free Press says Hyde-Smith leads polls by about 6 points. The Democratic primary drew only about 7,000 fewer votes than the Republican primary. Colom raised $2.8M through June. Hyde-Smith has more cash on hand. https://www.mississippifreepress.org/cory-booker-joins-scott-colom-to-mobilize-voters-as-democrats-eye-mississippis-senate-race/ - [2026-08-15] The latest public poll I found is Data for Progress (D), fielded Aug 5–15, with 1,018 likely voters. Hyde-Smith leads 44–38 (a version with leaners shows 47–41). Earlier, Impact Research (D) for SPLC had it at R+3 in April 2026, compared with R+13 in June 2025. Both pollsters are Democratic-aligned and I found no independent public poll. https://pollingsource.com/senate/MS - [2026-10-14] Aggregator forecasts: PoliAgg shows 98% Hyde-Smith and rates the race Safe R, with a model margin of R+16.7. Poliwave shows Likely R at R+8.2 (about 54/46 as a forecast share, not a win probability). These are secondary, unverified models. https://poliagg.com/race/us-senate-2026-ms/ - [2026-07/10] Kalshi had Hyde-Smith at about 90% in an aggregator snapshot, dated around Jul–Sep 2026. It is possibly stale, and it is another venue's market, not this contract. https://www.predictionedge.com/elections/us-senate/mississippi-race-winner-by-party/ - [2020-11-03] Mississippi Senate history: Hyde-Smith won 54.1–44.1 in 2020 against Espy, and ran about 6 points behind Trump. She also won the 2018 special runoff 53.6–46.4. Wicker won by 58.5–39.5 in 2018 and 62.8–37.2 in 2024. Democrats have not won a Mississippi Senate seat since 1982. https://ballotpedia.org/United_States_Senate_election_in_Mississippi,_2026 - [2026-10-13] The national environment looks Democratic-leaning. DDHQ gave Democrats 56% to take the Senate (The Hill, Oct 13). Trump carried Mississippi by about 23–24 points in 2024. Obama cut an ad for Colom, and Buttigieg is due to campaign on Oct 27. https://thehill.com/homenews/campaign/6143421-barack-obama-scott-colom-mississippi-senate-race-ad/ - [2026-06-10] The Cook Political Report has cited the state's underlying partisanship as the reason Hyde-Smith's weak favorability (55% unfavorable in the April Impact poll) has not made the race a tossup. Hyde-Smith has Trump's endorsement. https://msindy.org/p/democratic-us-senate-challenger-says - [2026-10-14] Resolution mechanics: Mississippi has a general-election runoff on Dec 1, 2026 if no candidate gets a majority. The independent Pinkins on the ballot could make that more likely in a close race. The market resolves once AP, Fox and NBC call the race, and otherwise on certification. A runoff would push resolution past the Nov 4 trading close. https://ballotpedia.org/United_States_Senate_election_in_Mississippi,_2026 BOTTOM LINE: Outside view is strongly Republican. There has been no Democratic Senate win in the state since 1982, GOP margins have run from 7 to 25 points in recent cycles, and all raters have it Safe/Solid R. The caveats are a Democratic-leaning national environment, thin Democratic-sponsored polling at R+3 to R+6, and a small runoff-timing risk. NOT FOUND: any independent (non-partisan) public poll of the race. The live Polymarket price (deliberately not searched). Any rating from Cook or Inside Elections newer than spring 2026. A Silver Bulletin or 538-style model with a Mississippi win probability. A direct reading of the Kalshi market.
report: yes case
YES means: the Republican nominee (Sen. Cindy Hyde-Smith) is the certified winner of the Nov 3, 2026 Mississippi U.S. Senate race, including any Dec 1 runoff. If AP, Fox and NBC all call it for her, that also resolves YES. - [2026-10-09] A Laurel Leader-Call column notes that Hyde-Smith's campaign has run or plans $1.3M in ads, per the Washington Post. That is nearly $800K more than Colom. The columnist says the incumbent "will outspend Colom very easily." He doubts Colom wins, and says it comes down to turnout. https://www.leader-call.com/opinion/columnists/is-mississippi-s-senate-seat-really-in-play/article_f69dac44-d6b3-4412-af2e-fe459fe6e2e8.html - [2026-10-07] The Downballot's digest (a search snippet; the page would not fetch) says Hyde-Smith's backers spent about $1.6M since September, against $500K from Colom's allies. It says "Republican groups haven't overlooked the race." The GOP side leads on outside money, and the Democratic effort is only a modest one. https://www.the-downballot.com/p/morning-digest-new-spending-shows - [2026-06-30] FEC data (fetched) show Hyde-Smith's principal committee with $2.54M cash on hand at the June 30 close. She also has a leadership PAC. Colom's cash on hand was $847K, per Magnolia Tribune on July 17. That is roughly a 3:1 cash edge going into the fall. Her 2025–26 receipts were $3.83M. https://www.fec.gov/data/candidate/S8MS00261/ - [2026-10-14] Kalshi's page, snapshotted today, shows Hyde-Smith at about 92%, with an R+7.7 margin forecast. That is a different venue and not this contract. Another market cross-check, from PoliAgg, puts the Democratic side near 9¢. https://kalshi.com/markets/senatems/mississippi-senate-race/senatems-26 - [2026-10-14] Pollsmax averages the three polls (Aug) at Hyde-Smith 46.5, Colom 38.8 (R+7.6). That is a gap of about 8 points even though every poll comes from a Democratic-aligned sponsor. Colom has not led in any head-to-head poll without an informed-ballot prompt. https://www.pollsmax.com/senate/mississippi/ - [2026-10-14] Past results by margin: R+25.6 in 2024, R+10.0 in 2020, R+13.2 in 2018 (Wicker), R+22.0 in 2014. Hyde-Smith's own 2020 win came even though she ran well behind Trump. Colom would need to beat the best Democratic showing in this period by a wide margin, and he has not previously been on a statewide ballot. https://www.poliwave.com/us/ms/sen-fed - [2026-06-09] Mississippi Today says Colom is a district attorney who has not appeared on a statewide ballot before. It says he would "likely need a significant amount of cash" to build name recognition. His $2M outside-group support, from American Bridge, is small beside the roughly $50M that group is spending nationally. https://mississippitoday.org/2026/06/09/colom-super-pac-hyde-smith/ - [2026-10-14] Mississippi has no no-excuse early voting. Absentee voting needs an excuse. The registration deadline passed Oct 5, and there is no same-day registration (Ballotpedia, fetched via search). The procedural limits on turnout weaken a Democratic surge strategy in a state where Democratic gains would need a big turnout jump. https://ballotpedia.org/Voting_in_Mississippi - [2026-10-14] The most likely path to YES is the ordinary one. Hyde-Smith wins by high single digits to mid-teens on Nov 3, with Trump-aligned rural and white-majority-county turnout holding up. Her incumbency, cash edge, Trump endorsement, and the lack of any DSCC money or public competitive poll (colleagues' reports) all support that. The three networks would likely call it on election night, before the Nov 4 close. https://poliagg.com/race/us-senate-2026-ms/ - [2026-10-14] The runoff risk is small. A runoff needs under 50% for every candidate. Ty Pinkins is on the ballot, but at R+8 or more, Hyde-Smith would be near or above 50% against two opponents. Even a runoff on Dec 1 would favor her, because the 2018 special runoff went to her 53.6–46.4. https://ballotpedia.org/United_States_Senate_election_in_Mississippi,_2026 BOTTOM LINE: The case for YES rests on baseline partisanship, a funding and spending edge for Hyde-Smith, and ratings at Solid/Safe R. Even Democratic-sponsored polling has her ahead, and the Kalshi market (a different venue) was around 92% for her on Oct 14. NOT FOUND: Any independent or October poll. Any FEC pre-general (Oct 22) report. Any AdImpact total for this race. A fetchable copy of The Downballot digest (its figures are from the snippet).
report: no case
YES means: the Republican nominee (Cindy Hyde-Smith) is the winner of the 2026 Mississippi U.S. Senate race. NO means a Democrat (Colom), an independent (Pinkins), or anyone else wins. - [2026-09-15] The earlier reports say a Dec 1 runoff could push resolution past the Nov 4 close. That is wrong for this race. The Mississippi Secretary of State clarified that the Senate seat needs only a plurality. The runoff rule covers only statewide state offices and special elections. Mississippi Today (Sept 20) confirms that "most votes, majority or not" wins. A three-way split with Pinkins therefore does not force a runoff. A NO-via-delay path through a runoff does not exist. Any delay would come only from a recount or contest, or from a call that is slow because the race is close. https://www.the-downballot.com/p/morning-digest-why-mississippis-senate - [2026-10-14] Mississippi Today (fetched) shows the Democratic surrogate push is larger than the earlier reports list. Warnock is holding a Jackson fundraiser and rally on Oct 14. Harris is due Oct 22 and Buttigieg Oct 27 on the Gulf Coast. Obama's ad started running this week. The same article calls the race negative, and Hyde-Smith is using the "national Democrats" attack. This is the best evidence of Democratic energy. It is activity, not votes. https://mississippitoday.org/2026/10/14/kamala-harris-to-campaign-in-columbus-for-scott-colom/ - [2026-09/10] Democratic money is real but small. American Bridge has put in about $2.1M (Yahoo/Politico, about Oct 8). AdImpact counts about $4M spent or reserved in the race (Latin Times, about Sept 28). A Soros-funded PAC has directed $1M to a pro-Colom super PAC. These are tens of millions short of what Democrats spent in Texas or Georgia. https://www.latintimes.com/democrats-begin-betting-mississippi-midterms-scott-colom-challenges-decades-gop-senate-control-599647 - [2026-10-10] The Washington Post, as cited by Leader-Call (about Oct 10), says Hyde-Smith's ad spending exceeds Colom's by nearly $800K. The columnist notes that a front-runner usually would not spend that much, which suggests her campaign fears low turnout. That is a modest NO-side signal. https://www.leader-call.com/opinion/columnists/is-mississippi-s-senate-seat-really-in-play/article_f69dac44-d6b3-4412-af2e-fe459fe6e2e8.html - [2026-10-14] A Kalshi snapshot shows Hyde-Smith at 91.8% with a +7.7 margin forecast. PoliAgg's tracker shows its polling average at only R+4.5 on one Democratic-aligned poll, against a model forecast of R+16.7. Prediction markets give D about 9¢, while PoliAgg's polling-only reading is about 37%. This is the widest gap between polls and markets and is the main source of NO upside. The polls it rests on are sparse and Democratic-sponsored. https://poliagg.com/race/us-senate-2026-ms/ - [2026-08-15] Newsweek (about Aug 28) reports that Hyde-Smith's campaign called the Data for Progress poll "partisan". The campaign says its internal numbers "look strong". The poll showed a 6-point race in a state Trump won by 23. Democrats call that outperformance, because it is about 17 points better than the 2024 presidential margin. https://www.newsweek.com/democrat-in-striking-distance-of-flipping-state-trump-won-by-23-pointspoll-12382515 - [2026-04] The SPLC/Impact poll found 55% unfavorable toward Hyde-Smith and 53% preferring "someone other." In a three-way race with informed voters, Colom led 41–38. Pinkins on the ballot also splits the anti-incumbent vote, which helps Hyde-Smith more than Colom. The poll's own SPLC spokesman said it is "by no means" a slam dunk. https://msindy.org/p/new-poll-shows-many-voters-souring - [2026-10-12] The Washington Sun reports that Hyde-Smith began airing attack ads on Colom in late September. That is generally read as a sign she takes the race seriously. It also quotes Republicans as confident, with Trump +23 and registered Republicans far outnumbering Democrats. DSCC and Senate Majority PAC had not committed money as of the article. https://www.washingtonsun.com/campaigns/red-states-trending-blue-mississippi-scott-colom - [2026-10-06] Hyde-Smith has attracted attention for her past statement that people should have "so many proteins to choose from" amid beef prices. Colom's ad on it ran Oct 13. She has also been attacked over Las Vegas campaign-fund travel. She has not agreed to debate. In 2018 she survived "public hanging" gaffes to win 54–46. Gaffe risk is real, but it has historically failed to flip the seat. https://www.mediaite.com/online/pick-another-protein-gop-senators-beef-price-flap-gets-charbroiled-by-dem-rival-in-viral-ad/ - [2026-10-06] Colom also has liabilities. The Magnolia Tribune reports that he used an AI-generated video of Hyde-Smith and began his campaign with a fake call. He has called for pausing data-center construction. Hyde-Smith has attacked him as a "Biden's pick" and "transgender defender." Colom is a first-time statewide candidate. https://magnoliatribune.com/2026/10/06/after-starting-his-campaign-with-a-fake-call-colom-shares-ai-generated-video-of-hyde-smith/ - [2026-06-09] Colom's ceiling is limited by racial polarization. Newsweek notes Democrats routinely get more than 40% in Mississippi but struggle to reach a majority. Colom had only about $560K on hand in June, against Hyde-Smith's $2.4M. The post-June fundraising figures are not in my sources. https://mississippitoday.org/2026/06/09/colom-super-pac-hyde-smith/ BOTTOM LINE: The strongest NO case is a wave scenario: a Democratic national environment, high Black turnout, a weak and unpopular incumbent, and a spoiler independent. Even so, the only polls are Democratic-sponsored and show Colom behind by 3–6. All raters have the race safe or solid, and there is no runoff-delay path. NOT FOUND: Any public poll after Aug 15, 2026. Any independent poll. Any DSCC or Senate Majority PAC spending commitment. Post-June fundraising totals. A fetchable copy of the Yahoo/Politico article. An official confirmation of the plurality rule on the sos.ms.gov page itself; I did not open it, and I relied on The Downballot's summary and Mississippi Today.
3. Forecasters 2 draws · Opus 5.5 + GPT · plain mean
claude-opus-5-5 · high effort
72% conf
Yes 92%
No 8%
(0) The condition is not met yet. The election is Nov 3, 2026, and AP, Fox and NBC have made no call. Hyde-Smith (R) faces Colom (D) and independent Ty Pinkins. (a) About three weeks remain until the election; the market resolves on the network calls or on certification. (b) Status quo strongly favors YES. Every major rater (Cook, Sabato, Inside Elections, Fox, RCP, Silver Bulletin, Split Ticket) rates the race Solid or Safe R, and DDHQ and The Economist rate it Likely R. Hyde-Smith has roughly a 3:1 cash edge, outspends Colom on ads, and has Trump's endorsement. Democrats have not won a Mississippi Senate race since 1982. (c) NO path: a strongly Democratic national environment (markets give Democrats about 63% for the Senate and 90% for the House), high Black turnout, and an unpopular incumbent hit by gaffes like the 'proteins' remark. Add a big surrogate push (Obama ads, Harris, Buttigieg, Warnock), and the R+3 to R+6 Democratic-sponsored polls prove accurate or understate Colom. (d) YES path: Mississippi's inelastic, racially polarized electorate holds, and Hyde-Smith wins by high single digits or more. Even the friendliest Democratic polls never show Colom ahead head-to-head. A runoff, if one occurred, is included in resolution and would likely favor her as it did in 2018. I anchor on the Polymarket price of 92.5%, which matches Kalshi at about 92%. I found no unpriced information to justify moving. The Democratic environment is real but already reflected in the market, and with no independent polling the uncertainty is symmetric.
claude-opus-5-5 · high effort
72% conf
Yes 92%
No 8%
(0) Not resolved. The general election is Nov 3, 2026, and AP, Fox and NBC cannot call it before then. Hyde-Smith (R) faces Colom (D) and independent Pinkins. (a) There are about 20 days left; the result should be called on election night or within days, before the Nov 4 close. (b) Status quo is a Hyde-Smith win. Every major rater has the race at Solid/Safe R or Likely R as of early October. She has a fundraising and outside-spending edge, and even the Democratic-sponsored polls show her ahead by 3–8 points. Democrats have not won a Mississippi Senate seat since 1982. (c) NO would take a strong Democratic wave, consistent with the market's 63.5% for a Democratic Senate and 90.5% for a Democratic House. It would also need a surge in Black turnout driven by the Harris, Obama and Buttigieg push, plus Hyde-Smith's unpopularity (55% unfavorable) and gaffes, so that Colom wins a plurality. (d) YES is the ordinary path: underlying partisanship (Trump +23) holds, Hyde-Smith wins by high single digits or more, and the race is called quickly. Reports say the seat needs only a plurality, so runoff-delay risk is minimal. I anchor on Polymarket's 92.5%, which matches Kalshi's roughly 92%. I see no unpriced information strong enough to move off it. The thin, partisan polling and the hostile national environment justify keeping about 8% on NO.
4. Final plain mean of 2 draws
92% (72% confidence)
Yes: 92% No: 8%
Mean of 2 draws (0.92, 0.92). (0) The condition is not met yet. The election is Nov 3, 2026, and AP, Fox and NBC have made no call. Hyde-Smith (R) faces Colom (D) and independent Ty Pinkins. (a) About three weeks remain until the election; the market resolves on the network calls or on certification. (b) Status quo strongly favors YES. Every major rater (Cook, Sabato, Inside Elections, Fox, RCP, Silver Bulletin, Split Ticket) rates the race Solid or Safe R, and DDHQ and The Economist rate it Likely R. Hyde-Smith has roughly a 3:1 cash edge, outspends Colom on ads, and has Trump's endorsement. Democrats have not won a Mississippi Senate race since 1982. (c) NO path: a strongly Democratic national environment (markets give Democrats about 63% for the Senate and 90% for the House), high Black turnout, and an unpopular incumbent hit by gaffes like the 'proteins' remark. Add a big surrogate push (Obama ads, Harris, Buttigieg, Warnock), and the R+3 to R+6 Democratic-sponsored polls prove accurate or understate Colom. (d) YES path: Mississippi's inelastic, racially polarized electorate holds, and Hyde-Smith wins by high single digits or more. Even the friendliest Democratic polls never show Colom ahead head-to-head. A runoff, if one occurred, is included in resolution and would likely favor her as it did in 2018. I anchor on the Polymarket price of 92.5%, which matches Kalshi at about 92%. I found no unpriced information to justify moving. The Democratic environment is real but already reflected in the market, and with no independent polling the uncertainty is symmetric.
Pipeline Timing
Total pipeline time: 79.3s
Per-tool research timings shown in the Research section above.