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Will the Democratic Party win the WA-05 House seat?

polymarketElections·2026-10-17·view on polymarket ↗
10%
Agent
12%
Market Price
-1.9%
Edge
62%
Confidence
50,168
Volume
1.1c
Spread
18
Days to resolution
8
Markets in event
final rationale
Mean of 2 draws (0.10, 0.10). (0) Not resolved. The general election is November 3, 2026, and the FEC and press show no result; WA-05 is a 2024 rematch between incumbent Baumgartner (R) and Conroy (D). (a) There are about 17 days to election day, plus several days of mail-ballot counting. (b) Status quo is a Republican hold, which resolves NO. Cook, Inside Elections and Sabato all rate the seat Solid or Safe R. The Solid Purple model gives Democrats about 2% (median R+16.9). Baumgartner won by 21 points in 2024 and leads Conroy roughly 4:1 in money. (c) NO scenario: Baumgartner's 47.4% primary share grows in November, as McMorris Rodgers' 49.3% in the 2018 primary became a roughly 10-point win in a wave year. Some Powell voters stay home or back the incumbent rather than a more progressive Conroy. (d) YES scenario: a D+10 national wave, driven by Trump at net -22 and an unpopular Iran war, plus DCCC money after the October 2 'in play' designation. Powell's endorsed voters would also need to consolidate behind Conroy and Spokane turnout surge, holding Baumgartner below 50%. The weak primary showing is real, but the Washington top-two primary electorate tends to understate the Republican general share. The anchor is the Polymarket price of 11.65%, which is falling (-6.5 points over 7 days). I shade slightly below it toward the modeled and expert consensus, without going as low as Solid Purple's 2%, given the wave environment and the sub-50% primary.
price vs. prediction
market price agent forecast at t+0
2 follow-ups
1. Planner Opus 5.5 · picks the research tools
Tools chosen: polymarket_direct resolution_source kalshi_related polymarket_related wikipedia
Planner reasoning
This is a Polymarket House race market, so polymarket_direct is the price anchor and resolution_source should point at the FEC. Kalshi and Polymarket related markets give cross-venue and House-control signals. Wikipedia covers district background: Spokane-based, R+ lean, Baumgartner incumbent, top-two primary results.
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 Democratic Party win the WA-05 House seat?** - Current price (probability): 11.65% (live; bid 11% / ask 12%) - 7-day price change: -6.50% - 30-day price change: -6.90% - Total volume: $50,168 (USD notional) - Price range: 9.80% - 34.05% - Data points: 90 days - resolution_source: already_resolved=unclear; matches_criteria=False; last_updated=2026-10-05. The election hasn't happened yet. Washington's general election is on November 3, 2026, and the FEC homepage posts no WA-05 result. Recent reporting (KREM/Yahoo, Oct 2, 2026; NWPB/OPB, Oct 5, 2026) shows the race is a rematch between Republican incumbent Michael Baumgartner and Democrat Carmela Conroy, the same two who face - kalshi_related: 2 related markets / summaries. keyword 'WA-05': no matches | keyword 'Washington 5th district': ok | keyword 'House control 2026': ok - polymarket_related: Polymarket search over 3 keyword(s), kept 15 matches. keyword 'WA-05': 5 markets | keyword 'Washington House': 5 markets | keyword 'House midterms 2026': 5 markets - wikipedia: Fetched 2 Wikipedia entries (0 missing pages). Research loops, bottom lines - current state: Baumgartner is the clear incumbent favorite on the structural evidence: Cook rates the seat Solid R and the district is R+5. His primary share (47%) was weak by historical standards, in a poor national environment for Republicans. Conroy is the only Democrat on the November ballot, and Powell has endorsed her. No public general-election poll was found. - base rate: The outside view strongly favors the Republican incumbent. Cook rates the seat Solid R, he won by 21 points in 2024, and he took about 47% in the 2026 primary. The only real upside for Democrats is a wave-year swing in an R+5 seat, and the only head-to-head poll found (Democratic-sponsored, May) had him ahead 53–47. - yes case: The best YES case is a wave-year primary-to-general analogy plus the DCCC's Oct 2 "in play" designation. The quantified evidence still points to a Republican hold. Every rater I could see has the seat Solid or Safe R, and the Solid Purple model has a median of R+16.9. - no case: Every modeled and expert source found (Cook Solid R, Inside Elections Solid R, Sabato Safe R, Solid Purple about 98% R) points to NO. The Democratic path rests on a large wave plus Powell-voter consolidation, against a roughly 4:1 money deficit and no public general-election poll showing Conroy ahead.
tools
toolstatustimeitemssummary
polymarket_direct OK 0.4s 1 ## This Market's Polymarket Data **Will the Democratic Party win the WA-05 House seat?** - Current price (probability): 11.65% (live; bid 11% / ask 12%) - 7-day price change: -6.50% - 30-day price change: -6.90% - Total volume: $50,168 (USD notional) - Price range: 9.80% - 34.05% - Data points: 90
resolution_source OK 11.5s 1 already_resolved=unclear; matches_criteria=False; last_updated=2026-10-05. The election hasn't happened yet. Washington's general election is on November 3, 2026, and the FEC homepage posts no WA-05 result. Recent reporting (KREM/Yahoo, Oct 2, 2026; NWPB/OPB, Oct 5, 2026) shows the race is a rematch
kalshi_related OK 4.9s 2 2 related markets / summaries. keyword 'WA-05': no matches | keyword 'Washington 5th district': ok | keyword 'House control 2026': ok
polymarket_related OK 0.4s 15 Polymarket search over 3 keyword(s), kept 15 matches. keyword 'WA-05': 5 markets | keyword 'Washington House': 5 markets | keyword 'House midterms 2026': 5 markets
wikipedia OK 0.3s 2 Fetched 2 Wikipedia entries (0 missing pages).
research loops · 4/4 ok · 16 searches · 2 page reads
dimensionstatustimesearchespage readsreport
current state OK 17s 4 0 4540 chars
base rate OK 18s 4 2 4569 chars
yes case OK 21s 4 0 5384 chars
no case OK 21s 4 0 5519 chars
report: current state
- [2026-10-15] Baumgartner (R, incumbent) and Conroy (D) debated at a Rotary event, after an NAACP forum the day before. Ballots are reaching voters' mailboxes. Topics were affordability, healthcare, tariffs, data centers and the Iran war. https://www.spokesman.com/stories/2026/oct/15/baumgartner-conroy-meet-twice-in-two-days-as-elect/ - [2026-10-11] Spokesman-Review analysis: Baumgartner won the 2024 general with over 60%. In the 2026 top-two primary he took about 47%. It was the first time since 1992 that Republicans got less than a majority there. 1992 was also the last year a Democrat won the seat (Tom Foley). The primary was complicated by independent Nate Powell, who has since endorsed Conroy. The paper says it is unclear how much a Democrat can capitalize. https://www.spokesman.com/stories/2026/oct/11/a-lot-has-changed-in-two-years-will-the-baumgartne/ - [2026-10-11] Same article: Trump's net approval is about -22 per Silver Bulletin, and the Iran war is unpopular. Baumgartner is a vocal Iran-war supporter and has rarely broken with Trump. The article notes a dearth of public polling in Eastern Washington. https://www.spokesman.com/stories/2026/oct/11/a-lot-has-changed-in-two-years-will-the-baumgartne/ - [2026-08-21] Primary results (Aug 4; certified Aug 18; Spokesman page last updated Aug 21): Baumgartner (R) 96,791 (47.44%). Conroy (D) 38,487 (18.86%). Powell (independent) 33,443 (16.39%). Other Democrats Fagan 4.43%, Womack 3.55%, Mavalwalla 3.18%, Freudenberg 1.40%, McGarr 0.56%. Several other independents were each at or under 1.43%. Combined Democratic-labelled vote was roughly 31.9%. Adding Powell makes about 48%, though he is "No party preference". https://www.spokesman.com/elections/2026/washington-primary-election-aug-4/races/congressional/congressional-district-5/us-representative/ - [2026-08-14] Cook Political Report race page: rating is Solid R (last updated Nov 17, 2025). Race analysis was updated Aug 14, 2026. The page notes that Trump carried the district by 11 points in 2024, while Baumgartner beat Conroy by 21. Cook PVI is R+5. https://www.cookpolitical.com/house/race/485511 - [2026-10-09] Cook's latest House ratings snapshot is dated Oct 9. WA-03 (Perez, D) appears on the competitive list. WA-05 appears not to be on it, though I could not see the full list. https://www.270towin.com/2026-house-election/table/cook-political-report-2026-house-ratings/ - [2026-05-29] Tavern Research (a Democratic-aligned firm) poll: Baumgartner led every named Democrat and the generic ballot, at about 53-54%. Against independent Nate Powell he trailed 47-53. https://tavernresearch.substack.com/p/wa-05-baumgartner-leads-democrats-trails-independent - [2026-10-05] Conroy is a former diplomat and prosecutor. Both candidates are based in Spokane. They held a forum at Whitman College on Sept 21, and a Sept 9 debate was held in Spokane. https://www.opb.org/article/2026/10/05/washington-states-5th-congressional-district-candidates-talk-trade-medicaid-affordability-data-centers/ - [2026-07 report, ~79 days before Oct 17] Center Square: Powell led Conroy in cash on hand, with over $110k against Conroy's over $74k. Conroy had received over $223k from ActBlue. Baumgartner had the most cash. https://www.thecentersquare.com/washington/article_0034d96c-f658-4ff6-bce0-c313bda63fa5.html - [2026-10-16] A letter to the editor mentions Baumgartner "million-dollar attack ads". Trump has given him a "complete and total endorsement" (letter, Oct 15). These are anecdotal. https://www.spokesman.com/stories/2026/oct/16/letters-for-friday-oct-16/ - [2026-11-03] Scheduled: general election Nov 3 (mail voting, results begin that night). Washington counts late-arriving mail ballots, so the call could take days if close. The 2024 margin was 21 points. https://ballotpedia.org/Washington's_5th_Congressional_District_election,_2026 BOTTOM LINE: Baumgartner is the clear incumbent favorite on the structural evidence: Cook rates the seat Solid R and the district is R+5. His primary share (47%) was weak by historical standards, in a poor national environment for Republicans. Conroy is the only Democrat on the November ballot, and Powell has endorsed her. No public general-election poll was found. NOT FOUND: any public general-election poll of WA-05 after the primary. Cook's current rating after the Aug 14 update (the page returned 403, and the snapshot shows only Solid R as of Nov 2025). Sabato and Inside Elections ratings. Latest FEC Q3 fundraising totals. Any outside-spending totals.
report: base rate
- [2026-10-17] Cook Political Report lists WA-05 as Solid R. The rating was last updated Feb 6, 2025. Cook's page says Trump carried the district by only 11 points in 2024, while Baumgartner beat Conroy by 21. PVI is R+5. https://www.cookpolitical.com/house/race/485511 - [2026-03-17] Ballotpedia showed Cook at Solid Republican on each date from 2/24 to 3/17/2026. Its DDHQ/The Hill rating was "Pending". I did not find Inside Elections or Sabato ratings. https://ballotpedia.org/Washington's_5th_Congressional_District_election,_2026 - [2026-10-17] Cook's House summary shows 171 Solid R and 16 Likely R seats. WA-05 is not among the districts named on the 270toWin "as of Oct 9" competitive list I saw. https://www.cookpolitical.com/ratings/house-race-ratings - [2024-11-05] The 2024 general election result was Baumgartner (R) 60.6% to Conroy (D) 39.3%, a margin of about 84,500 votes. In the 2024 primary Baumgartner had 27.5% and Conroy 18.3%. https://ballotpedia.org/Washington's_5th_Congressional_District_election,_2026 - [2026-08-04] In the top-two primary, Baumgartner (R) took 47.44% (96,791 votes). Conroy (D) took 18.86% (38,487) and independent Nate Powell took 16.39%. The other Democrats took about 13% combined (Fagan 4.43%, Womack 3.55%, Mavalwalla 3.18%, Freudenberg 1.40%, McGarr 0.56%). Counting Powell, the non-Republican vote was about 48–50%. The same page reports a strong Democratic-side primary environment. https://www.spokesman.com/elections/2026/washington-primary-election-aug-4/races/congressional/congressional-district-5/us-representative/ - [2026-08-04] The Spokesman-Review says a Republican has held the seat comfortably since Foley lost in 1994. It gives a historical analogue: McMorris Rodgers won 49.3% in the 2018 primary, then won the general by nearly 10 points in a blue-wave year. It also says the 2026 environment is similar, with Trump historically unpopular. Powell said he would back Conroy in the general. Baumgartner was under 50% in the primary. https://www.spokesman.com/stories/2026/aug/04/michael-baumgartner-to-face-democrat-carmela-conro/ - [2026-05-29] Tavern Research (a Democratic firm) polled 578 likely voters on May 18–25, with a ±5.6 margin. Baumgartner led Conroy 53–47 and a generic Democrat 53–47. Against independent Powell he trailed 47–53. Powell is no longer on the ballot. This is a partisan poll, and Tavern's own write-up says the leads are inside the margin of error. https://www.tavernresearch.com/research-and-writings//wa-05-baumgartner-leads-democrats-trails-independent - [2026-07-08] A smarter.vote page cites an NYT/Siena figure of Baumgartner 39%, Conroy 9% (n=1,000). That looks like a primary-style or partial-sample figure, not a head-to-head. I couldn't verify it. https://smarter.vote/races/wa-house-05-2026/ - [2026-10-13] Money as of Oct 13: Baumgartner raised about $1.7M and spent $976K. Conroy raised about $400K and spent about $335K. https://www.union-bulletin.com/news/local/elections/q-a-congressional-district-5-candidates-share-priorities-and-strategies/article_944dd620-2231-4878-a1bd-a2327a3827c5.html - [2026-10-05] The general election is a 2024 rematch. Candidates debated on Sept. 21 and covered tariffs, Medicaid and affordability. I found no sign of a scandal or a late shift. https://www.nwpb.org/local/2026-10-05/baumgartner-vs-conroy-washington-states-5th-congressional-district-candidates-talk-trade-medicaid-affordability-data-centers - [2026-10-17] Base rate: a Democrat has not won this seat since 1992, and the district has leaned R since 1994. The Cook rating of Solid R is the category where upsets are very rare. The main upside case for Democrats is a national wave, since the district is only R+5. In 2018, a wave year, a similar Spokane race stayed at a ~10-point R win. https://en.wikipedia.org/wiki/Washington%27s_5th_congressional_district - [2026-10-17] Ballotpedia describes the national House as 218–214 Republican, with three vacancies. https://ballotpedia.org/Washington's_5th_Congressional_District_election,_2026 BOTTOM LINE: The outside view strongly favors the Republican incumbent. Cook rates the seat Solid R, he won by 21 points in 2024, and he took about 47% in the 2026 primary. The only real upside for Democrats is a wave-year swing in an R+5 seat, and the only head-to-head poll found (Democratic-sponsored, May) had him ahead 53–47. NOT FOUND: Inside Elections and Sabato ratings for WA-05; any recent (Aug–Oct) public head-to-head poll; any Cook race-analysis text (paywalled); betting odds from other venues for this seat.
report: yes case
YES means: Democrat Carmela Conroy (or any Democrat) wins the WA-05 U.S. House seat in the Nov 3, 2026 general election. - [2026-10-02] The DCCC added WA-05 to its "Districts in Play" list, which now has 66 districts. Roll Call lists it as Trump +11, the narrowest margin among the eight seats added that day. The DCCC chair framed it as a blue-wave expansion into "deep red terrain". Inside Elections rated WA-05 Solid R at that time. https://www.spokesman.com/stories/2026/oct/02/house-democrats-grow-more-bullish-about-midterms-a/ - [2026-10-02] The Democratic committee's own spending decision is a new fact. The "in play" label unlocks DCCC resources, and the NRCC replied that Baumgartner won by 21 points in 2024. Baumgartner said he "fought off out-of-state PACs in the primary". https://www.union-bulletin.com/news/northwest/national-democrats-target-washingtons-5th-district-race-as-in-play/article_43022c94-0e37-514f-8506-6050359d375f.html - [2026-10-15] Daily Kos Elections calls it a "reach seat" but says primary results justify a look at an upset. Its argument is that, outside 2016, the GOP top-two primary share has tracked the GOP general share closely. Baumgartner's 47.4% is a sole-Republican share, with only a few independents on the ballot to add to it. That points to a mid-to-high-40s Republican ceiling if the pattern holds. https://dailykos.com/stories/2026/10/15/800080395/community/beavers-and-evergreens-key-oregon-and-washington-races - [2026-10-08] Sabato's Crystal Ball has 214 seats at least Leans D, 201 at least Leans R and 20 Toss-ups. It expects the presidential party to do badly in Harris-won districts. Its national read is a Democratic House wave. https://centerforpolitics.org/crystalball/republicans-try-to-avoid-a-crossover-district-shutout-four-house-rating-changes/ - [2026-10-17] Solid Purple's model gives a median outcome of R+16.9, with an 80% range of R+6.7 to R+26.7. That puts a Democratic win outside the central range. Its national-environment term alone is D+9.6, and the seat's partisan lean is R+9.7. The model's fundamentals (candidates and fundraising) cost Democrats about 17 points. That is the main hurdle for YES. Its only poll input is the May Tavern poll, and the model expects "a sustained, race-specific shift". It lists Cook as Solid R, Inside Elections as Solid R and Sabato as Safe R. https://www.solid-purple.com/2026/race/wa-05 - [2026-08-04] The seat's partisan lean is ambiguous. Solid Purple shows PVI R+11, against R+5 elsewhere. A smaller baseline helps Democrats, because Trump's 2024 margin was only 11. The Aug 4 NBC primary page shows the same 47.4% Baumgartner share and 18.9% for Conroy. Other primary tallies are covered in the earlier reports. https://www.nbcnews.com/politics/2026-primary-elections/washington-us-house-district-5-results - [2026-08-07] In the 3rd District primary, later-counted ballots broke Republican. Primary electorates in Washington are older and lean more Republican than November electorates. This is a mechanism for Baumgartner's 47% understating the November Democratic share. It has not been quantified for WA-05 specifically. https://walandlord.org/washington-2026-primary-election-recap-august-7-2026/ - [2026-10-03] Trump personally got involved. He posted an Oval Office video endorsing Baumgartner and attacking Conroy. Conroy's side reads this as a sign Republicans see trouble. Neither source gives data showing GOP internal polling. It is Democratic framing, not evidence. https://theconroyconnection.substack.com/p/the-conroy-connection-newsletter-151 - [2026-10-16] A Spokesman letter claims Conroy is "surging ahead in the polls". I found no public poll to support it. This is a reader's letter, not data. https://www.spokesman.com/stories/2026/oct/16/letters-for-friday-oct-16/ - [2026-05-29] On the polling path: the Tavern Research poll in the Solid Purple table is listed as R+6, not R+10 or so. The 53–47 head-to-head lead is within the ±5.6 margin on 578 likely voters (the earlier reports cover the details). It is the only head-to-head poll found, and it was taken before the DCCC move, the primary and Powell's endorsement of Conroy. https://www.solid-purple.com/2026/race/wa-05 **Single most likely path to YES:** a Democratic wave of roughly D+9 or more nationally. Nearly all of Powell's 16% and the independents' vote would have to go to Conroy. On top of that, Democrats would need a strong turnout surge in Spokane County and in Whitman and Walla Walla counties. Prerequisites: (1) the Aug primary's Republican share holds near 47–50% instead of rising in November, which Daily Kos says is the usual pattern; (2) DCCC and allied money funds the race, since Conroy's fundraising is far behind; (3) a Democratic national environment worse for Republicans than Cook's ratings assume. BOTTOM LINE: The best YES case is a wave-year primary-to-general analogy plus the DCCC's Oct 2 "in play" designation. The quantified evidence still points to a Republican hold. Every rater I could see has the seat Solid or Safe R, and the Solid Purple model has a median of R+16.9. NOT FOUND: any post-primary public or internal general-election poll; outside-spending figures (DCCC, House Majority PAC, NRCC); Cook's current rating, since its page returned 403 earlier; Q3 FEC totals; and any independent evidence that the DCCC is spending in the district.
report: no case
YES means: the Democratic candidate (Carmela Conroy) wins the WA-05 U.S. House seat on Nov 3, 2026. NO means Baumgartner (R) or any non-Democrat wins. - [2026-10-17] Solid Purple's model gives the Democrat about 2% and a median outcome of R+16.9. Its inputs: partisan lean R+9.7, fundamentals R+17.1, national environment D+9.6, and a polls term of D+0.3 driven by a single poll. Its expert-ratings panel shows Cook Solid R, Inside Elections Solid R, Sabato Safe R. This fills the Inside Elections and Sabato gap in earlier reports. Even after crediting a D+9.6 national environment, the model still projects the seat about 17 points to the right of the nation. It says the race "needs a plot twist". https://www.solid-purple.com/2026/race/wa-05 - [2026-10-17] Solid Purple's 80% simulation band runs from R+26.7 to R+7.1. Every simulated outcome in that band is a Republican win, so a Democratic win needs a result outside the model's central range. https://www.solid-purple.com/2026/race/wa-05 - [2026-10-03] Kalshi's WA-05 snapshot, as reproduced by PredictionEdge, showed Baumgartner at 84% and Conroy at 17%. That is another venue's price, about two weeks old, and the two sides sum to over 100%. It is far less bearish on Democrats than the model above. https://www.predictionedge.com/elections/us-house/washington-district-5-race-winner-by-party/ - [2026-10-11] The Spokesman-Review says it is "unclear" how much a Democrat can capitalize on the weak 47% primary showing. It attributes part of that weakness to Powell, a "relatively popular" independent backed by a sizable dark-money campaign. At least 10 other primary candidates believed Conroy was the wrong nominee. Those votes were a protest and a split in the anti-incumbent field, not an automatic Conroy bloc, and some Powell voters may not move to a progressive Democrat. https://www.spokesman.com/stories/2026/oct/11/a-lot-has-changed-in-two-years-will-the-baumgartne/ - [2026-10-11] The same article reports Baumgartner is fundraising off the DCCC targeting his race, so Democrats are engaging. It also says no Q3 FEC figures had been published yet, with the quarterly report due about a week later. The latest known count has Conroy near $400K against Baumgartner above $1.7M, roughly a 4:1 gap. The article gives no evidence of major outside Democratic spending. https://www.spokesman.com/stories/2026/oct/11/a-lot-has-changed-in-two-years-will-the-baumgartne/ - [2026-08-06] In Spokane County's Aug 4 primary, a Democrat led the county auditor race with about 47%, ahead of two Republicans at about 28% and 25%. That shows Spokane's Democratic lean. In the same primary, Republicans in LD6 won 51% (Bingle) in a Spokane-area race against a Democrat and an independent. The district also includes rural counties where Baumgartner took 54–69% of the primary vote, so Spokane alone cannot carry Conroy. https://www.spokesman.com/elections/2026/washington-primary-election-aug-4/results/ - [2026-10-16] The only claim of Conroy "surging in the polls" is a letter to the editor. No poll is cited, and Solid Purple (Oct 17) lists only the May Tavern poll. Treat the letter as unsupported. https://spokesman.com/stories/2026/oct/16/letters-for-friday-oct-16 - [2026-08-04] In the 2024 general election Trump carried the district by 11 points and Baumgartner won by 21 (Cook). The Aug 4 LMTribune report has Baumgartner at 48% and Conroy at 20.8% on election night. Baumgartner told the paper his 2024 margin gives him a strong position. For Conroy to win, she would need to beat his 2024 margin by more than 20 points. That is a swing far larger than the 2018 analogue, where McMorris Rodgers still won by nearly 10 in a wave year (per earlier report). https://www.lmtribune.com/northwest/baumgartner-to-face-conroy-in-5th-district-rematch-af474827 - [2026-08-04] Conroy's positioning is more progressive than in 2024, per LMTribune. She backs a $16 minimum wage and single-payer health care. In 2024 she pitched herself as a moderate. That is a potential liability in a rural, Trump+11 district, and some independent and Powell voters may not follow. https://www.lmtribune.com/northwest/baumgartner-to-face-conroy-in-5th-district-rematch-af474827 - [2026-08-04] The PredictionEdge snapshot's phrase "Carmela Conroy has won the WA-05 primary" reflects only that she advanced to the general. She finished second, at 18.9% versus Baumgartner's 47.4% (NBC). Do not read the headline as a sign of strength. https://www.nbcnews.com/politics/2026-primary-elections/washington-us-house-district-5-results - [2026-10-17] Resolution mechanics are not a source of upside for a Democratic YES. Conroy is the only Democrat on the ballot, so there is no ambiguity over a non-ballot-listed affiliation. The result will follow credible reporting and the official count, and Baumgartner's lead is large enough that a recount or slow call is unlikely to matter. Status quo (R-held seat, Solid R) means NO. https://www.cookpolitical.com/house/race/485511 BOTTOM LINE: Every modeled and expert source found (Cook Solid R, Inside Elections Solid R, Sabato Safe R, Solid Purple about 98% R) points to NO. The Democratic path rests on a large wave plus Powell-voter consolidation, against a roughly 4:1 money deficit and no public general-election poll showing Conroy ahead. NOT FOUND: Any Aug–Oct public head-to-head poll. Q3 FEC totals (due about Oct 15–20). Outside-spending data from the DCCC, NRCC or super PACs. Cook's post-Aug-14 rating text; the page shows Solid R.
3. Forecasters 2 draws · Opus 5.5 + GPT · plain mean
claude-opus-5-5 · high effort
62% conf
Yes 10%
No 90%
(0) Not resolved. The general election is November 3, 2026, and the FEC and press show no result; WA-05 is a 2024 rematch between incumbent Baumgartner (R) and Conroy (D). (a) There are about 17 days to election day, plus several days of mail-ballot counting. (b) Status quo is a Republican hold, which resolves NO. Cook, Inside Elections and Sabato all rate the seat Solid or Safe R. The Solid Purple model gives Democrats about 2% (median R+16.9). Baumgartner won by 21 points in 2024 and leads Conroy roughly 4:1 in money. (c) NO scenario: Baumgartner's 47.4% primary share grows in November, as McMorris Rodgers' 49.3% in the 2018 primary became a roughly 10-point win in a wave year. Some Powell voters stay home or back the incumbent rather than a more progressive Conroy. (d) YES scenario: a D+10 national wave, driven by Trump at net -22 and an unpopular Iran war, plus DCCC money after the October 2 'in play' designation. Powell's endorsed voters would also need to consolidate behind Conroy and Spokane turnout surge, holding Baumgartner below 50%. The weak primary showing is real, but the Washington top-two primary electorate tends to understate the Republican general share. The anchor is the Polymarket price of 11.65%, which is falling (-6.5 points over 7 days). I shade slightly below it toward the modeled and expert consensus, without going as low as Solid Purple's 2%, given the wave environment and the sub-50% primary.
claude-opus-5-5 · high effort
62% conf
Yes 10%
No 90%
Democrats win WA-05 with probability 0.10, slightly below the market's 11.65%. (0) Not resolved; the election is Nov 3, 2026 and the FEC posts no result. (a) About 17 days remain, plus a possible multi-day mail count. (b) Status quo is a Republican hold: Cook, Inside Elections and Sabato all rate it Solid/Safe R, Baumgartner won the 2024 rematch by 21 with a roughly 4:1 money edge, and Solid Purple's median is R+16.9 (about 2% D) even with a D+9.6 national environment. (c) NO: Baumgartner's 47.4% primary share grows in November as Powell and minor-candidate votes split, as in 2018 when McMorris Rodgers won by about 10 after a 49.3% primary; he ends at 52-55%. (d) YES: a deep anti-Trump wave (net approval about -22, unpopular Iran war), a younger and more Democratic general electorate, Powell voters following his endorsement to Conroy, and DCCC money after the Oct 2 'in play' designation. The primary weakness is real, but the only head-to-head poll (May, Democratic-aligned firm) had Baumgartner up 53-47, and there is no post-primary public poll. I sit between the market and the model because the market likely overweights the wave narrative.
4. Final plain mean of 2 draws
10% (62% confidence)
Yes: 10% No: 90%
Mean of 2 draws (0.10, 0.10). (0) Not resolved. The general election is November 3, 2026, and the FEC and press show no result; WA-05 is a 2024 rematch between incumbent Baumgartner (R) and Conroy (D). (a) There are about 17 days to election day, plus several days of mail-ballot counting. (b) Status quo is a Republican hold, which resolves NO. Cook, Inside Elections and Sabato all rate the seat Solid or Safe R. The Solid Purple model gives Democrats about 2% (median R+16.9). Baumgartner won by 21 points in 2024 and leads Conroy roughly 4:1 in money. (c) NO scenario: Baumgartner's 47.4% primary share grows in November, as McMorris Rodgers' 49.3% in the 2018 primary became a roughly 10-point win in a wave year. Some Powell voters stay home or back the incumbent rather than a more progressive Conroy. (d) YES scenario: a D+10 national wave, driven by Trump at net -22 and an unpopular Iran war, plus DCCC money after the October 2 'in play' designation. Powell's endorsed voters would also need to consolidate behind Conroy and Spokane turnout surge, holding Baumgartner below 50%. The weak primary showing is real, but the Washington top-two primary electorate tends to understate the Republican general share. The anchor is the Polymarket price of 11.65%, which is falling (-6.5 points over 7 days). I shade slightly below it toward the modeled and expert consensus, without going as low as Solid Purple's 2%, given the wave environment and the sub-50% primary.
Pipeline Timing
Total pipeline time: 55.4s
Per-tool research timings shown in the Research section above.