Who will be the next Supreme Court justice?
I assess a ~22% chance James Ho becomes the next Supreme Court Justice by Jan 20, 2029 — plausible if a conservative president nominates and Republicans control or split the Senate, but contingent on timing and fierce competition from other conservative jurists.
Analysis
**Stage 1 — Blind analysis (ignore market prices):**
- Context and mechanism: The event requires (1) a Supreme Court vacancy before 2029-01-20, (2) a president willing to nominate James Ho, and (3) a Senate sufficiently disposed to confirm him. Each link in that chain has independent uncertainty. Historically, vacancies are relatively rare but non-negligible over a 3+ year window; confirmation outcomes depend heavily on partisan control and the nominee's perceived acceptability to swing senators.
- James Ho's profile and fit: Ho is a federal appellate judge with a conservative textualist/limitation jurisprudence, good conservative credentials, a compelling personal biography (Asian-American, well-regarded clerkship background), and likely good backing from conservative legal networks. Those features make him a credible nominee for a Republican or conservative-leaning administration that wants a mainstream, confirmable conservative.
- Competitive landscape: Other plausible conservative picks (Thapar, Oldham, Sauer, Cannon and many others) differ in strengths. Thapar and Oldham have long been on high-level shortlists and have strong Senate relationships; Cannon is politically prominent but has a thinner federal appellate record; Sauer and others may be attractive for certain factions. Selection will weigh ideology, confirmability, demographic optics, age, and prior public-profile controversies.
- Quantifying blind odds for Ho: Break the problem into approximate probabilities: probability of at least one vacancy by Jan 20, 2029 (~50–70% historically over ~3 years, depending on incumbents' ages — conservative midpoint ~60%); probability a conservative-sympathetic president (or the sitting president if conservative) is in place and willing to nominate Ho conditional on a vacancy (varies widely; if a Republican president, moderate-high ~40–60%; if a Democratic president, near 0 unless cross-party compromise); probability the Senate confirms Ho conditional on nomination (depends on Senate composition — if GOP-controlled or a GOP president with filibuster removed, higher; estimate conditional confirmation probability of a compromise conservative nominee ~60% under favorable Senate). Multiplying a representative path: 0.60 (vacancy) * 0.55 (nomination chance under a favorable political alignment weighted by probability of a favorable president) * 0.65 (confirmation) ≈ 21%.
- Calibration of uncertainties: The largest single uncertainty is who is president when a vacancy occurs and which names are on the short list. The other big uncertainties are the timing of the vacancy (which shapes the political environment) and the Senate's partisan math. Given those, a blind (facts-only) point estimate around **22%** for Ho is defensible: high enough to reflect his attractiveness on conservative shortlists, but modest because selection is competitive and contingent on political factors beyond his control.
**Stage 2 — Market calibration (compare to prices):**
- Current market: Yes 16%, No 84% for James Ho. My independent 22% is modestly higher than the market.
- Why the market might be lower: - The market may be distributing probability across many possible names and undervaluing any single mid-tier favorite. When many plausible conservative names exist, markets often push individual probabilities down. - Uncertainty over the presidency and Senate control through Jan 2029 (which the market is pricing aggressively) reduces per-name probability. Traders may be emphasizing the non-trivial chance that a Democratic-controlled White House will be the nominator or that the next vacancy is filled by a different ideological wing. - Market participants could discount Ho because other names (Thapar, Oldham) have historically been more publicly prominent on shortlists, or because district-court figures with political loyalty (e.g., Cannon) might be preferred for political reasons.
- Why my estimate is higher (and why the market could be underpricing Ho): - Ho combines traditional conservative jurisprudence with demographic and optics advantages that make him a broadly confirmable pick — an attribute markets sometimes under-appreciate in multi-candidate settings. If a Republican or conservative president seeks a lower-friction confirmation, Ho is a plausible compromise choice. - The market may be overweighting high-visibility names or political media narratives; many successful nominees are not the single most publicly-discussed name but are strong inside-the-Beltway choices. That structural bias can make the market under-assign probability to solid appellate judges like Ho.
- Conclusion on calibration: The market price (16%) is a reasonable signal of uncertainty and competition, but I place modestly higher independent odds (22%) because Ho's profile maps well to the attributes a confirming majority would seek under the most likely favorable political scenarios. The gap (6 percentage points) reflects my view that the market may be slightly over-discounting confirmability and the role of inside-the-Beltway vetting relative to public name-recognition.
Arguments
For
- Ho is a bona fide conservative appellate judge with a strong textualist record and backing from conservative legal networks, making him a credible nomination option.
- His demographic/profile (Asian-American, solid academic and clerkship credentials) improves confirmability optics and can appeal to a broader set of senators.
- If a Republican or conservative president nominates, Ho is less polarizing than some political picks and therefore more likely to clear a close Senate.
Against
- Nomination depends first on a vacancy and then on who is president — both external to Ho and highly uncertain.
- Strong competition from other well-known conservative jurists (Thapar, Oldham) who may be higher on presidential shortlists or preferred by key senators.
- If the Senate is narrowly divided or controlled by Democrats, a conservative nominee like Ho could face a difficult confirmation fight or be blocked.
Key drivers
- Whether and when a Supreme Court vacancy occurs before Jan 20, 2029
- Who occupies the White House at the time of the vacancy and that president's shortlist preferences
- Senate composition and the confirmation environment (majorities, filibuster rules, and swing senators)
- Ho's standing inside conservative legal networks and absence of disqualifying controversy
Risk factors
- No vacancy occurs (or the next vacancy arises too late to be 'next' before the event cutoff)
- President chooses a different ideological or demographically-preferred nominee
- Senate opposition or a contentious confirmation fight that scuttles Ho's prospects
- Emergence of a higher-priority candidate (e.g., someone with deeper ties to the president or better Senate relationships)
Scenarios
Best case
A vacancy occurs while a Republican or conservative-leaning president is in office who prioritizes a confirmable conservative. That president picks Ho as a consensus pick; he faces limited defections and is confirmed comfortably before Jan 20, 2029.
Most likely
At least one vacancy occurs. Conservative shortlists are crowded; Ho is frequently discussed and is plausibly short-listed, but a different conservative appellate judge (or a politically strategic pick) is chosen and confirmed. Ho remains a leading contender but not the next justice.
Worst case
No vacancy occurs during the relevant window, or a Democratic president (or a Republican president who favors a different ideological profile) makes the nomination; alternatively, Ho is nominated but fails confirmation due to a Senate hostile to his jurisprudence or a high-profile controversy.
Outcomes
| Outcome | AI | MKT |
|---|---|---|
| James Ho | 22% | 16% |
| D. John Sauer | 18% | 16% |
| Andrew Oldham | 17% | 14% |
| Aileen Cannon | 13% | 12% |
| Amul Thapar | 30% | 9% |
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