Each sub-question estimates the probability a specific donor (or the field) is the top Republican donor by Aug 1, 2026; since these are mutually exclusive outcomes, the weighted average reflects the relative likelihood distribution anchored on the most recent June 29 leaderboard rankings and any July donation news.
## Cross-Market Signals ### Polymarket - "Will Norway win the 2026 FIFA World Cup?" → Yes: 0.05, Volume: $106.1M - "Will Mexico win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $137.8M - "Will Morocco win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $130.4M - "Will England win the 2026 FIFA World Cup?" → Yes: 0.14, Volume: $83.0M - "Will USA win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $133.9M - "Will Egypt win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $124.8M - "Will Belgium win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $105.5M - "Will Portugal win the 2026 FIFA World Cup?" → Yes: 0.06, Volume: $100.5M - "Will Switzerland win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $97.4M - "Will Argentina win the 2026 FIFA World Cup?" → Yes: 0.17, Volume: $101.5M
1. [sq1 | web_search | STRONG cred 90 | UP | RECENT] As of June 29, 2026, Ben Horowitz & Marc Andreessen led Republican donors at $91.2 million on the WaPo leaderboard. 2. [sq1 | web_search | MODERATE cred 85 | NEUTRAL | RECENT] Horowitz and Andreessen have largely given to pro-tech and pro-crypto super PACs like Fairshake. 3. [sq2 | web_search | STRONG cred 88 | UP | RECENT] Musk was second at $85.1 million as of June 29, roughly $6 million behind the Horowitz/Andreessen lead. 4. [sq2 | web_search | MODERATE cred 80 | UP | RECENT] Musk made a pair of $5 million donations on June 27 to main House and Senate GOP super PACs. 5. [sq2 | article_search | MODERATE cred 85 | UP | RECENT] SpaceX IPO in June 2026 made Musk world's first trillionaire, vastly increasing his available liquidity. 6. [sq3 | web_search | STRONG cred 88 | NEUTRAL | RECENT] Jeff & Janine Yass ranked third at $83.7 million as of June 29, about $7.5 million behind the leader. 7. [sq4 | web_search | STRONG cred 88 | DOWN | RECENT] Miriam Adelson ranked fourth at $67.6 million as of June 29, roughly $24 million behind the leader. 8. [sq4 | article_search | MODERATE cred 85 | NEUTRAL | RECENT] June 30 Supreme Court ruling erased limits on party-candidate coordination, expected to inject more money for Republicans. 9. [sq1 | web_search | WEAK cred 40 | NEUTRAL | VERY_RECENT] No July 2026 leaderboard update or donation news found altering the June 29 rankings among top donors. ## Cross-Market Signals ### Polymarket - "Will Norway win the 2026 FIFA World Cup?" → Yes: 0.05, Volume: $106.1M - "Will Mexico win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $137.8M - "Will Morocco win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $130.4M - "Will England win the 2026 FIFA World Cup?" → Yes: 0.14, Volume: $83.0M - "Will USA win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $133.9M - "Will Egypt win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $124.8M - "Will Belgium win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $105.5M - "Will Portugal win the 2026 FIFA World Cup?" → Yes: 0.06, Volume: $100.5M - "Will Switzerland win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $97.4M - "Will Argentina win the 2026 FIFA World Cup?" → Yes: 0.17, Volume: $101.5M Information gaps: - No July 2026 WaPo leaderboard update showing latest amounts - No data on specific July donations by any top-4 donor - No historical base rate for how often leaderboard top spot changes month-to-month - FEC reporting cadence and next filing deadline unknown Key uncertainties: - Whether Musk deploys post-IPO liquidity into a large July donation - Timing of next FEC filings that WaPo uses to update rankings - Whether a large late-arriving donation lifts a lower-ranked donor - Small ~$6M gap between #1 and #2 easily closable
You are an elite superforecaster. Estimate the probability of each option for this Metaculus multiple-choice question.
## Question
Who will be the largest Republican donor in the 2026 cycle, as of August 1, 2026?
## Description / Resolution Criteria
## Description
*See also the companion question:* [*Will George Soros have at least a 3-to-1 lead over the second place Democratic donor on the Washington Post leaderboard as of August 1, 2026?*](https://www.metaculus.com/questions/44363/will-soros-have-3x-the-2-dem-donors-wapo-leaderboard-total-on-aug-1-2026/)
***
The Washington Post, [Meet the megadonors pouring more than \$1.3 billion into the 2026 election](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/): 
> The top donors in American politics have poured more than \$1.3 billion so far this cycle into influencing the country’s politics, according to a Washington Post analysis of Federal Election Commission data.
> The donors lean Republican, and cash could prove critical for the GOP to maintain control of Congress in November. In the first half of 2026, Republican-leaning donors gave \$880 million, compared with \$290 million from Democratic-leaning givers and \$200 million from bipartisan and special interest groups.
> But most of the money, regardless of affiliation, was given to super PACs that can legally accept unlimited sums.
According to the Post, as of June 29, 2026 the highest Republican donors were: 
1. Ben Horowitz & Marc Andreessen: \$91.2 million
2. Elon Musk: \$85.1 million
3. Jeff & Janine Yass: \$83.7 million
4. Miriam Adelson: \$67.6 million
`{"format": "metac_reveal_and_close_in_period", "info": {"post_id": 44362, "question_id": 44372}}`
## Resolution Criteria
This question resolves as the Republican-aligned donor, according to the Washington Post at its Top 50 donors [leaderboard](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/), who has donated the highest amount in the 2026 election cycle, as of August 1, 2026.
## Fine Print
This question's information (resolution criteria, fine print, background info, etc) is synced with an [original identical question](https://www.metaculus.com/questions/44362) which opened on 2026-06-30 09:00:00. This question will resolve based on the resolution criteria and fine print of the linked original question. However, if this question would resolve differently than the original question, then this question will be annulled. Additionally, if the original question's resolution could have been known before this question opened, then this question will be annulled.
## Options
- Ben Horowitz & Marc Andreessen
- Elon Musk
- Jeff & Janine Yass
- Miriam Adelson
- Someone else
## Sub-question decomposition (planner)
- (w=0.40) Will Ben Horowitz & Marc Andreessen remain the top Republican donor on the WaPo leaderboard as of August 1, 2026? — They held the top spot ($91.2M) as of June 29, 2026, closest to resolution, making them the frontrunner.
- (w=0.25) Will Elon Musk overtake to become the top Republican donor on the WaPo leaderboard as of August 1, 2026? — Musk was second at $85.1M and has demonstrated willingness for very large, sudden political spending, making a jump plau
- (w=0.15) Will Jeff & Janine Yass become the top Republican donor on the WaPo leaderboard as of August 1, 2026? — Third at $83.7M, within striking distance of the lead.
- (w=0.20) Will Miriam Adelson or another donor (not in the current top 3) become the top Republican donor as of August 1, 2026? — Adelson ($67.6M) is a historically massive giver and other donors could surge in the final election-cycle push.
## Synthesized evidence
1. [sq1 | web_search | STRONG cred 90 | UP | RECENT] As of June 29, 2026, Ben Horowitz & Marc Andreessen led Republican donors at $91.2 million on the WaPo leaderboard.
2. [sq1 | web_search | MODERATE cred 85 | NEUTRAL | RECENT] Horowitz and Andreessen have largely given to pro-tech and pro-crypto super PACs like Fairshake.
3. [sq2 | web_search | STRONG cred 88 | UP | RECENT] Musk was second at $85.1 million as of June 29, roughly $6 million behind the Horowitz/Andreessen lead.
4. [sq2 | web_search | MODERATE cred 80 | UP | RECENT] Musk made a pair of $5 million donations on June 27 to main House and Senate GOP super PACs.
5. [sq2 | article_search | MODERATE cred 85 | UP | RECENT] SpaceX IPO in June 2026 made Musk world's first trillionaire, vastly increasing his available liquidity.
6. [sq3 | web_search | STRONG cred 88 | NEUTRAL | RECENT] Jeff & Janine Yass ranked third at $83.7 million as of June 29, about $7.5 million behind the leader.
7. [sq4 | web_search | STRONG cred 88 | DOWN | RECENT] Miriam Adelson ranked fourth at $67.6 million as of June 29, roughly $24 million behind the leader.
8. [sq4 | article_search | MODERATE cred 85 | NEUTRAL | RECENT] June 30 Supreme Court ruling erased limits on party-candidate coordination, expected to inject more money for Republicans.
9. [sq1 | web_search | WEAK cred 40 | NEUTRAL | VERY_RECENT] No July 2026 leaderboard update or donation news found altering the June 29 rankings among top donors.
## Cross-Market Signals
### Polymarket
- "Will Norway win the 2026 FIFA World Cup?" → Yes: 0.05, Volume: $106.1M
- "Will Mexico win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $137.8M
- "Will Morocco win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $130.4M
- "Will England win the 2026 FIFA World Cup?" → Yes: 0.14, Volume: $83.0M
- "Will USA win the 2026 FIFA World Cup?" → Yes: 0.03, Volume: $133.9M
- "Will Egypt win the 2026 FIFA World Cup?" → Yes: 0.00, Volume: $124.8M
- "Will Belgium win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $105.5M
- "Will Portugal win the 2026 FIFA World Cup?" → Yes: 0.06, Volume: $100.5M
- "Will Switzerland win the 2026 FIFA World Cup?" → Yes: 0.01, Volume: $97.4M
- "Will Argentina win the 2026 FIFA World Cup?" → Yes: 0.17, Volume: $101.5M
Information gaps:
- No July 2026 WaPo leaderboard update showing latest amounts
- No data on specific July donations by any top-4 donor
- No historical base rate for how often leaderboard top spot changes month-to-month
- FEC reporting cadence and next filing deadline unknown
Key uncertainties:
- Whether Musk deploys post-IPO liquidity into a large July donation
- Timing of next FEC filings that WaPo uses to update rankings
- Whether a large late-arriving donation lifts a lower-ranked donor
- Small ~$6M gap between #1 and #2 easily closable
## Required pre-forecast walkthrough
Before giving probabilities, address these explicitly in your rationale:
(a) The time left until the question resolves.
(b) The status quo outcome — the option most likely if nothing changes from today.
(c) An outcome that would be SURPRISING but plausible.
## Calibration guidance
- **Status quo anchoring.** Good forecasters put extra weight on the status quo option because the world changes slowly most of the time.
- **Leave moderate probability on most options.** Good forecasters don't drop options to ~0% — leave ≥3-5% on every option to account for unexpected outcomes, unless you have strong specific evidence ruling them out.
- Avoid uniform-distribution laziness — most options are not equally likely.
- **Anchor on prediction markets.** If liquid market prices (Polymarket / Kalshi) for these options appear in the evidence, treat them as a strong prior and stay close to them absent specific contrary evidence.
## Output
Return ONLY valid JSON, no markdown fences:
{
"rationale": "<address (a) (b) (c) above, then explain your distribution — 4-7 sentences total>",
"probabilities": {
"Ben Horowitz & Marc Andreessen": <prob>,
"Elon Musk": <prob>,
"Jeff & Janine Yass": <prob>,
"Miriam Adelson": <prob>,
"Someone else": <prob>
}
}
Probabilities MUST sum to ~1.0 (renormalization is applied; close enough is fine).
{
"forecast": {
"evidence_brief": "1. [sq1 | web_search | STRONG cred 90 | UP | RECENT] As of June 29, 2026, Ben Horowitz \u0026 Marc Andreessen led Republican donors at $91.2 million on the WaPo leaderboard.\n2. [sq1 | web_search | MODERATE cred 85 | NEUTRAL | RECENT] Horowitz and Andreessen have largely given to pro-tech and pro-crypto super PACs like Fairshake.\n3. [sq2 | web_search | STRONG cred 88 | UP | RECENT] Musk was second at $85.1 million as of June 29, roughly $6 million behind the Horowitz/Andreessen lead.\n4. [sq2 | web_search | MODERATE cred 80 | UP | RECENT] Musk made a pair of $5 million donations on June 27 to main House and Senate GOP super PACs.\n5. [sq2 | article_search | MODERATE cred 85 | UP | RECENT] SpaceX IPO in June 2026 made Musk world\u0027s first trillionaire, vastly increasing his available liquidity.\n6. [sq3 | web_search | STRONG cred 88 | NEUTRAL | RECENT] Jeff \u0026 Janine Yass ranked third at $83.7 million as of June 29, about $7.5 million behind the leader.\n7. [sq4 | web_search | STRONG cred 88 | DOWN | RECENT] Miriam Adelson ranked fourth at $67.6 million as of June 29, roughly $24 million behind the leader.\n8. [sq4 | article_search | MODERATE cred 85 | NEUTRAL | RECENT] June 30 Supreme Court ruling erased limits on party-candidate coordination, expected to inject more money for Republicans.\n9. [sq1 | web_search | WEAK cred 40 | NEUTRAL | VERY_RECENT] No July 2026 leaderboard update or donation news found altering the June 29 rankings among top donors.\n\n## Cross-Market Signals\n\n### Polymarket\n- \"Will Norway win the 2026 FIFA World Cup?\" \u2192 Yes: 0.05, Volume: $106.1M\n- \"Will Mexico win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $137.8M\n- \"Will Morocco win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $130.4M\n- \"Will England win the 2026 FIFA World Cup?\" \u2192 Yes: 0.14, Volume: $83.0M\n- \"Will USA win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $133.9M\n- \"Will Egypt win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $124.8M\n- \"Will Belgium win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $105.5M\n- \"Will Portugal win the 2026 FIFA World Cup?\" \u2192 Yes: 0.06, Volume: $100.5M\n- \"Will Switzerland win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $97.4M\n- \"Will Argentina win the 2026 FIFA World Cup?\" \u2192 Yes: 0.17, Volume: $101.5M\n\nInformation gaps:\n - No July 2026 WaPo leaderboard update showing latest amounts\n - No data on specific July donations by any top-4 donor\n - No historical base rate for how often leaderboard top spot changes month-to-month\n - FEC reporting cadence and next filing deadline unknown\n\nKey uncertainties:\n - Whether Musk deploys post-IPO liquidity into a large July donation\n - Timing of next FEC filings that WaPo uses to update rankings\n - Whether a large late-arriving donation lifts a lower-ranked donor\n - Small ~$6M gap between #1 and #2 easily closable",
"forecast_prompt": "You are an elite superforecaster. Estimate the probability of each option for this Metaculus multiple-choice question.\n\n## Question\nWho will be the largest Republican donor in the 2026 cycle, as of August 1, 2026?\n\n## Description / Resolution Criteria\n## Description\n*See also the companion question:* [*Will George Soros have at least a 3-to-1 lead over the second place Democratic donor on the Washington Post leaderboard as of August 1, 2026?*](https://www.metaculus.com/questions/44363/will-soros-have-3x-the-2-dem-donors-wapo-leaderboard-total-on-aug-1-2026/)\n\n***\n\nThe Washington Post, [Meet the megadonors pouring more than \\$1.3 billion into the 2026 election](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/):\u0026#x20;\n\n\u003e The top donors in American politics have poured more than \\$1.3 billion so far this cycle into influencing the country\u2019s politics, according to a Washington Post analysis of Federal Election Commission data.\n\n\u003e The donors lean Republican, and cash could prove critical for the GOP to maintain control of Congress in November. In the first half of 2026, Republican-leaning donors gave \\$880 million, compared with \\$290 million from Democratic-leaning givers and \\$200 million from bipartisan and special interest groups.\n\n\u003e But most of the money, regardless of affiliation, was given to super PACs that can legally accept unlimited sums.\n\nAccording to the Post, as of June 29, 2026 the highest Republican donors were:\u0026#x20;\n\n1. Ben Horowitz \u0026 Marc Andreessen: \\$91.2 million\n2. Elon Musk: \\$85.1 million\n3. Jeff \u0026 Janine Yass: \\$83.7 million\n4. Miriam Adelson: \\$67.6 million\n\n`{\"format\": \"metac_reveal_and_close_in_period\", \"info\": {\"post_id\": 44362, \"question_id\": 44372}}`\n\n## Resolution Criteria\nThis question resolves as the Republican-aligned donor, according to the Washington Post at its Top 50 donors [leaderboard](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/), who has donated the highest amount in the 2026 election cycle, as of August 1, 2026.\n\n## Fine Print\nThis question\u0027s information (resolution criteria, fine print, background info, etc) is synced with an [original identical question](https://www.metaculus.com/questions/44362) which opened on 2026-06-30 09:00:00. This question will resolve based on the resolution criteria and fine print of the linked original question. However, if this question would resolve differently than the original question, then this question will be annulled. Additionally, if the original question\u0027s resolution could have been known before this question opened, then this question will be annulled.\n\n## Options\n - Ben Horowitz \u0026 Marc Andreessen\n - Elon Musk\n - Jeff \u0026 Janine Yass\n - Miriam Adelson\n - Someone else\n\n## Sub-question decomposition (planner)\n- (w=0.40) Will Ben Horowitz \u0026 Marc Andreessen remain the top Republican donor on the WaPo leaderboard as of August 1, 2026? \u2014 They held the top spot ($91.2M) as of June 29, 2026, closest to resolution, making them the frontrunner.\n- (w=0.25) Will Elon Musk overtake to become the top Republican donor on the WaPo leaderboard as of August 1, 2026? \u2014 Musk was second at $85.1M and has demonstrated willingness for very large, sudden political spending, making a jump plau\n- (w=0.15) Will Jeff \u0026 Janine Yass become the top Republican donor on the WaPo leaderboard as of August 1, 2026? \u2014 Third at $83.7M, within striking distance of the lead.\n- (w=0.20) Will Miriam Adelson or another donor (not in the current top 3) become the top Republican donor as of August 1, 2026? \u2014 Adelson ($67.6M) is a historically massive giver and other donors could surge in the final election-cycle push.\n\n## Synthesized evidence\n1. [sq1 | web_search | STRONG cred 90 | UP | RECENT] As of June 29, 2026, Ben Horowitz \u0026 Marc Andreessen led Republican donors at $91.2 million on the WaPo leaderboard.\n2. [sq1 | web_search | MODERATE cred 85 | NEUTRAL | RECENT] Horowitz and Andreessen have largely given to pro-tech and pro-crypto super PACs like Fairshake.\n3. [sq2 | web_search | STRONG cred 88 | UP | RECENT] Musk was second at $85.1 million as of June 29, roughly $6 million behind the Horowitz/Andreessen lead.\n4. [sq2 | web_search | MODERATE cred 80 | UP | RECENT] Musk made a pair of $5 million donations on June 27 to main House and Senate GOP super PACs.\n5. [sq2 | article_search | MODERATE cred 85 | UP | RECENT] SpaceX IPO in June 2026 made Musk world\u0027s first trillionaire, vastly increasing his available liquidity.\n6. [sq3 | web_search | STRONG cred 88 | NEUTRAL | RECENT] Jeff \u0026 Janine Yass ranked third at $83.7 million as of June 29, about $7.5 million behind the leader.\n7. [sq4 | web_search | STRONG cred 88 | DOWN | RECENT] Miriam Adelson ranked fourth at $67.6 million as of June 29, roughly $24 million behind the leader.\n8. [sq4 | article_search | MODERATE cred 85 | NEUTRAL | RECENT] June 30 Supreme Court ruling erased limits on party-candidate coordination, expected to inject more money for Republicans.\n9. [sq1 | web_search | WEAK cred 40 | NEUTRAL | VERY_RECENT] No July 2026 leaderboard update or donation news found altering the June 29 rankings among top donors.\n\n## Cross-Market Signals\n\n### Polymarket\n- \"Will Norway win the 2026 FIFA World Cup?\" \u2192 Yes: 0.05, Volume: $106.1M\n- \"Will Mexico win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $137.8M\n- \"Will Morocco win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $130.4M\n- \"Will England win the 2026 FIFA World Cup?\" \u2192 Yes: 0.14, Volume: $83.0M\n- \"Will USA win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $133.9M\n- \"Will Egypt win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $124.8M\n- \"Will Belgium win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $105.5M\n- \"Will Portugal win the 2026 FIFA World Cup?\" \u2192 Yes: 0.06, Volume: $100.5M\n- \"Will Switzerland win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $97.4M\n- \"Will Argentina win the 2026 FIFA World Cup?\" \u2192 Yes: 0.17, Volume: $101.5M\n\nInformation gaps:\n - No July 2026 WaPo leaderboard update showing latest amounts\n - No data on specific July donations by any top-4 donor\n - No historical base rate for how often leaderboard top spot changes month-to-month\n - FEC reporting cadence and next filing deadline unknown\n\nKey uncertainties:\n - Whether Musk deploys post-IPO liquidity into a large July donation\n - Timing of next FEC filings that WaPo uses to update rankings\n - Whether a large late-arriving donation lifts a lower-ranked donor\n - Small ~$6M gap between #1 and #2 easily closable\n\n## Required pre-forecast walkthrough\n\nBefore giving probabilities, address these explicitly in your rationale:\n (a) The time left until the question resolves.\n (b) The status quo outcome \u2014 the option most likely if nothing changes from today.\n (c) An outcome that would be SURPRISING but plausible.\n\n## Calibration guidance\n\n- **Status quo anchoring.** Good forecasters put extra weight on the status quo option because the world changes slowly most of the time.\n- **Leave moderate probability on most options.** Good forecasters don\u0027t drop options to ~0% \u2014 leave \u22653-5% on every option to account for unexpected outcomes, unless you have strong specific evidence ruling them out.\n- Avoid uniform-distribution laziness \u2014 most options are not equally likely.\n- **Anchor on prediction markets.** If liquid market prices (Polymarket / Kalshi) for these options appear in the evidence, treat them as a strong prior and stay close to them absent specific contrary evidence.\n\n## Output\n\nReturn ONLY valid JSON, no markdown fences:\n\n{\n \"rationale\": \"\u003caddress (a) (b) (c) above, then explain your distribution \u2014 4-7 sentences total\u003e\",\n \"probabilities\": {\n \"Ben Horowitz \u0026 Marc Andreessen\": \u003cprob\u003e,\n \"Elon Musk\": \u003cprob\u003e,\n \"Jeff \u0026 Janine Yass\": \u003cprob\u003e,\n \"Miriam Adelson\": \u003cprob\u003e,\n \"Someone else\": \u003cprob\u003e\n }\n}\n\nProbabilities MUST sum to ~1.0 (renormalization is applied; close enough is fine).\n",
"models": [
"opus"
],
"probabilities": {
"Ben Horowitz \u0026 Marc Andreessen": 0.48,
"Elon Musk": 0.28,
"Jeff \u0026 Janine Yass": 0.12,
"Miriam Adelson": 0.05,
"Someone else": 0.07
},
"rationale": "(a) Only ~1 month elapses between the June 29 snapshot and the August 1 resolution, limiting how much rankings can shift. (b) Status quo favors Ben Horowitz \u0026 Marc Andreessen, who led at $91.2M and had no reported July news dislodging them. (c) A surprising-but-plausible outcome is Musk overtaking them: he trailed by only ~$6M, made fresh donations June 27, and post-SpaceX-IPO liquidity gives him unmatched capacity for a sudden large gift. The gaps between the top three are small (~$6-7.5M) and easily closable, so I keep meaningful probability on Musk and Yass. Adelson trailed by ~$24M, a larger but not insurmountable gap for a historically massive giver, warranting modest weight. Someone else surging into first within a month is unlikely but nonzero given the volatile, unlimited-super-PAC environment. I anchor heavily on the status quo leader while distributing the remainder toward Musk primarily.",
"top_option": "Ben Horowitz \u0026 Marc Andreessen"
},
"plan": {
"combination_logic": "weighted_average",
"domain": "politics",
"n_sub_qs": 4,
"n_tools": 3,
"reasoning_approach": "Each sub-question estimates the probability a specific donor (or the field) is the top Republican donor by Aug 1, 2026; since these are mutually exclusive outcomes, the weighted average reflects the relative likelihood distribution anchored on the most recent June 29 leaderboard rankings and any July donation news.",
"sub_questions": [
{
"id": "sq1",
"question": "Will Ben Horowitz \u0026 Marc Andreessen remain the top Republican donor on the WaPo leaderboard as of August 1, 2026?",
"rationale": "They held the top spot ($91.2M) as of June 29, 2026, closest to resolution, making them the frontrunner.",
"weight": 0.4
},
{
"id": "sq2",
"question": "Will Elon Musk overtake to become the top Republican donor on the WaPo leaderboard as of August 1, 2026?",
"rationale": "Musk was second at $85.1M and has demonstrated willingness for very large, sudden political spending, making a jump plausible.",
"weight": 0.25
},
{
"id": "sq3",
"question": "Will Jeff \u0026 Janine Yass become the top Republican donor on the WaPo leaderboard as of August 1, 2026?",
"rationale": "Third at $83.7M, within striking distance of the lead.",
"weight": 0.15
},
{
"id": "sq4",
"question": "Will Miriam Adelson or another donor (not in the current top 3) become the top Republican donor as of August 1, 2026?",
"rationale": "Adelson ($67.6M) is a historically massive giver and other donors could surge in the final election-cycle push.",
"weight": 0.2
}
],
"tool_requests": [
{
"parameters": {
"brief": "Find the latest Washington Post Top 50 megadonor leaderboard rankings for the 2026 election cycle, focusing on the largest Republican-aligned individual donors and any recent large donations in July 2026 by Ben Horowitz/Marc Andreessen, Elon Musk, Jeff Yass, and Miriam Adelson.",
"max_searches": 4,
"question_title": "Who will be the largest Republican donor in the 2026 cycle, as of August 1, 2026?"
},
"target_sub_questions": [
"sq1",
"sq2",
"sq3",
"sq4"
],
"tool_name": "claude_news"
},
{
"parameters": {
"queries": [
"Washington Post 2026 megadonors leaderboard largest Republican donor",
"Elon Musk political donation July 2026 super PAC",
"Andreessen Horowitz 2026 election donations FEC"
]
},
"target_sub_questions": [
"sq1",
"sq2",
"sq3"
],
"tool_name": "web_search"
},
{
"parameters": {
"lookback_days": 45,
"queries": [
"largest Republican donor 2026 cycle super PAC",
"Elon Musk America PAC donation 2026",
"Miriam Adelson 2026 election spending"
]
},
"target_sub_questions": [
"sq2",
"sq4"
],
"tool_name": "article_search"
}
]
},
"question": {
"close_time": "2026-07-06T09:00:00Z",
"description": "## Description\n*See also the companion question:* [*Will George Soros have at least a 3-to-1 lead over the second place Democratic donor on the Washington Post leaderboard as of August 1, 2026?*](https://www.metaculus.com/questions/44363/will-soros-have-3x-the-2-dem-donors-wapo-leaderboard-total-on-aug-1-2026/)\n\n***\n\nThe Washington Post, [Meet the megadonors pouring more than \\$1.3 billion into the 2026 election](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/):\u0026#x20;\n\n\u003e The top donors in American politics have poured more than \\$1.3 billion so far this cycle into influencing the country\u2019s politics, according to a Washington Post analysis of Federal Election Commission data.\n\n\u003e The donors lean Republican, and cash could prove critical for the GOP to maintain control of Congress in November. In the first half of 2026, Republican-leaning donors gave \\$880 million, compared with \\$290 million from Democratic-leaning givers and \\$200 million from bipartisan and special interest groups.\n\n\u003e But most of the money, regardless of affiliation, was given to super PACs that can legally accept unlimited sums.\n\nAccording to the Post, as of June 29, 2026 the highest Republican donors were:\u0026#x20;\n\n1. Ben Horowitz \u0026 Marc Andreessen: \\$91.2 million\n2. Elon Musk: \\$85.1 million\n3. Jeff \u0026 Janine Yass: \\$83.7 million\n4. Miriam Adelson: \\$67.6 million\n\n`{\"format\": \"metac_reveal_and_close_in_period\", \"info\": {\"post_id\": 44362, \"question_id\": 44372}}`\n\n## Resolution Criteria\nThis question resolves as the Republican-aligned donor, according to the Washington Post at its Top 50 donors [leaderboard](https://www.washingtonpost.com/elections/interactive/2026/06/25/these-are-biggest-individual-donors-2026-election-cycle/), who has donated the highest amount in the 2026 election cycle, as of August 1, 2026.\n\n## Fine Print\nThis question\u0027s information (resolution criteria, fine print, background info, etc) is synced with an [original identical question](https://www.metaculus.com/questions/44362) which opened on 2026-06-30 09:00:00. This question will resolve based on the resolution criteria and fine print of the linked original question. However, if this question would resolve differently than the original question, then this question will be annulled. Additionally, if the original question\u0027s resolution could have been known before this question opened, then this question will be annulled.",
"options": [
"Ben Horowitz \u0026 Marc Andreessen",
"Elon Musk",
"Jeff \u0026 Janine Yass",
"Miriam Adelson",
"Someone else"
],
"question_type": "multiple_choice",
"title": "Who will be the largest Republican donor in the 2026 cycle, as of August 1, 2026?"
},
"research": {
"cross_market_brief": "## Cross-Market Signals\n\n### Polymarket\n- \"Will Norway win the 2026 FIFA World Cup?\" \u2192 Yes: 0.05, Volume: $106.1M\n- \"Will Mexico win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $137.8M\n- \"Will Morocco win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $130.4M\n- \"Will England win the 2026 FIFA World Cup?\" \u2192 Yes: 0.14, Volume: $83.0M\n- \"Will USA win the 2026 FIFA World Cup?\" \u2192 Yes: 0.03, Volume: $133.9M\n- \"Will Egypt win the 2026 FIFA World Cup?\" \u2192 Yes: 0.00, Volume: $124.8M\n- \"Will Belgium win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $105.5M\n- \"Will Portugal win the 2026 FIFA World Cup?\" \u2192 Yes: 0.06, Volume: $100.5M\n- \"Will Switzerland win the 2026 FIFA World Cup?\" \u2192 Yes: 0.01, Volume: $97.4M\n- \"Will Argentina win the 2026 FIFA World Cup?\" \u2192 Yes: 0.17, Volume: $101.5M",
"errors": [],
"has_cross_market": true,
"n_errors": 0,
"n_tools": 3,
"tools": [
{
"elapsed_s": 34.87,
"error": null,
"success": true,
"summary": "13 citations",
"tool_name": "claude_news"
},
{
"elapsed_s": 62.78,
"error": null,
"success": true,
"summary": "0 results",
"tool_name": "web_search"
},
{
"elapsed_s": 0.55,
"error": null,
"success": true,
"summary": "29 articles",
"tool_name": "article_search"
}
]
},
"synthesis": {
"evidence": [
{
"claim": "As of June 29, 2026, Ben Horowitz \u0026 Marc Andreessen led Republican donors at $91.2 million on the WaPo leaderboard.",
"credibility": 90,
"direction": "UP",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "STRONG",
"sub_question_id": "sq1"
},
{
"claim": "Horowitz and Andreessen have largely given to pro-tech and pro-crypto super PACs like Fairshake.",
"credibility": 85,
"direction": "NEUTRAL",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "MODERATE",
"sub_question_id": "sq1"
},
{
"claim": "Musk was second at $85.1 million as of June 29, roughly $6 million behind the Horowitz/Andreessen lead.",
"credibility": 88,
"direction": "UP",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "STRONG",
"sub_question_id": "sq2"
},
{
"claim": "Musk made a pair of $5 million donations on June 27 to main House and Senate GOP super PACs.",
"credibility": 80,
"direction": "UP",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "MODERATE",
"sub_question_id": "sq2"
},
{
"claim": "SpaceX IPO in June 2026 made Musk world\u0027s first trillionaire, vastly increasing his available liquidity.",
"credibility": 85,
"direction": "UP",
"priced_in": true,
"recency": "RECENT",
"source": "article_search",
"strength": "MODERATE",
"sub_question_id": "sq2"
},
{
"claim": "Jeff \u0026 Janine Yass ranked third at $83.7 million as of June 29, about $7.5 million behind the leader.",
"credibility": 88,
"direction": "NEUTRAL",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "STRONG",
"sub_question_id": "sq3"
},
{
"claim": "Miriam Adelson ranked fourth at $67.6 million as of June 29, roughly $24 million behind the leader.",
"credibility": 88,
"direction": "DOWN",
"priced_in": true,
"recency": "RECENT",
"source": "web_search",
"strength": "STRONG",
"sub_question_id": "sq4"
},
{
"claim": "June 30 Supreme Court ruling erased limits on party-candidate coordination, expected to inject more money for Republicans.",
"credibility": 85,
"direction": "NEUTRAL",
"priced_in": true,
"recency": "RECENT",
"source": "article_search",
"strength": "MODERATE",
"sub_question_id": "sq4"
},
{
"claim": "No July 2026 leaderboard update or donation news found altering the June 29 rankings among top donors.",
"credibility": 40,
"direction": "NEUTRAL",
"priced_in": false,
"recency": "VERY_RECENT",
"source": "web_search",
"strength": "WEAK",
"sub_question_id": "sq1"
}
],
"information_gaps": [
"No July 2026 WaPo leaderboard update showing latest amounts",
"No data on specific July donations by any top-4 donor",
"No historical base rate for how often leaderboard top spot changes month-to-month",
"FEC reporting cadence and next filing deadline unknown"
],
"key_uncertainties": [
"Whether Musk deploys post-IPO liquidity into a large July donation",
"Timing of next FEC filings that WaPo uses to update rankings",
"Whether a large late-arriving donation lifts a lower-ranked donor",
"Small ~$6M gap between #1 and #2 easily closable"
],
"n_evidence": 9
},
"timings": {
"forecast": 12.82,
"plan": 15.87,
"research": 62.78,
"synthesis": 15.76
}
}