Will Trump be impeached and removed from office?

**Stage 1 — Blind analysis (ignore market prices):**

- Framing the event correctly: this market requires two events to occur before Jan 20, 2029 — (1) a House impeachment vote (articles introduced and passed) and (2) a Senate conviction resulting in removal. These are separate and sequential; removal is the much harder step.

- Probability decomposition I use: P(Removal) = P(House impeaches) * P(Senate convicts | House impeaches).

- P(House impeaches) — *my central estimate ~30% (range 15–50%).* Rationale: impeachment is a partisan institution but also a political tool; a House can impeach with a partisan majority if the majority finds political benefit or overwhelming legal evidence. Trump has been impeached twice before, showing the mechanism is politically available. Future impeachments depend heavily on House control, the severity and clarity of any new alleged wrongdoing, and political calculus (electoral timing, voter reactions, intra-party discipline). Given the remainder of his term (three-plus years) there is time for significant legal/constitutional crises to surface, but there's also a strong incentive for a co-partisan House majority (if present) to avoid impeachment. A 30% central estimate balances plausible paths for impeachment against the institutional reluctance and House composition uncertainty.

- P(Senate convicts | House impeaches) — *my central estimate ~17% (range 5–30%).* Rationale: conviction requires 67 Senate votes — historically, conviction of a president has never occurred; Nixon resigned before a near-certain impeachment/conviction; Andrew Johnson was acquitted by one vote in 1868. Modern Senate partisanship makes 67 votes extremely difficult. Even if Democrats control the Senate, conviction requires a substantial bloc of the president's party to defect. The second Trump impeachment trial (2021) produced 7 Republican votes to convict — far short of the 17 needed. To reach conviction would typically require either overwhelming, non-partisan evidence (e.g., near-universal agreement of criminality or constitutional breach) or a major political realignment in the Senate (e.g., multiple scandals undermining party loyalty). That is plausible in worst-case scenarios but unlikely in normal political dynamics; hence the low conditional probability.

- Combined: central multiplicative estimate = 0.30 * 0.17 ≈ 0.051 → **~5%**.

- Other qualitative adjustments: timing matters. Early-term impeachment campaigns have more runway for evidence and political shifts; late-term moves risk being seen as partisan or symbolic. Removal is more likely only if impeachment occurs relatively early and with overwhelming public and intra-party condemnation. The risk of resignation or other non-removal outcomes (e.g., legal processes outside Congress, pardons, or state-level prosecutions) also reduces the chance the Senate ever convicts.

**Stage 2 — Market calibration (compare to current market price Yes = 18%):**

- The current market price (Yes 18%) is materially higher than my independent 5% estimate. Possible reasons the market is richer: - Traders may conflate impeachment with removal. Many public commentators and bettors treat “impeached” as the salient event and underweight the much harder Senate-conviction step. If some participants buy Yes believing impeachment alone satisfies the market, that will push prices up. - Risk-seeking / tail-hedging demand: large-volume participants (campaigns, interest groups, or partisan bettors) may buy Yes as a hedge against catastrophic scenarios (constitutional crisis, violent unrest, unprecedented disclosures). These buyers will bid up prices on low-probability, high-impact outcomes. - Overreaction to legal news cycles: news about indictments, investigations, or revelations can spike perceived risk of congressional action; markets sometimes extrapolate these transitory signals into overly high long-run removal probabilities. - Liquidity and participant composition: prediction markets can be dominated by a subset of bettors with higher subjective probabilities; with 490k contracts, concentrated positions can distort price relative to a fully diversified wisdom-of-crowds. - Objective uncertainty premium: some traders rationally pay up for small-probability tail events that would be catastrophic (and thus worth hedging at higher-than-true odds).

- My assessment of market mispricing: I believe the market is *overpricing* the removal outcome by a material margin. If you accept my decomposition and the historically steep barrier to Senate conviction, the market implies either a much higher probability of impeachment or a much higher conditional conviction probability than is realistic under typical political dynamics. That said, markets can price in rare tail shocks that are hard to quantify; if you want to trade, the 18% price offers an attractive expected-value stance if you agree with my ~5% independent probability.

- Practical note on uncertainty: my estimate carries substantial tail risk and scenario dependence. If a major, clearly provable constitutional or criminal offense by the president is revealed and bipartisan Senate defections look likely, my conditional probability would rise rapidly. Conversely, if the president's party maintains disciplined control of both chambers at relevant moments, my probability could drop to near zero.