The number that has Washington, political traders, and constitutional lawyers talking right now is 72.
That is the percentage probability assigned to a third Trump impeachment on Kalshi, the federally regulated prediction exchange, as of 2026. It is an all-time record for that contract. It did not arrive without reason.
Over a span of roughly two weeks, more than 85 members of Congress called for Trump's removal or resignation. Thirteen formal articles of impeachment were filed. A bill to establish a presidential fitness commission under the 25th Amendment attracted 50 co-sponsors in a single day. And through all of it, not one Republican broke ranks.
That last part is why the 13% short-term number matters just as much as the 72% headline. Because what the markets are really telling you, when you read the data carefully, is not that impeachment is imminent. It is that the conditions for a third attempt are building, and the November midterms will decide whether those conditions ever become action.
This article breaks down every number, every political development, and every structural barrier you need to understand what is actually going on.
Where the Odds Stand Right Now
There are three distinct prediction market contracts currently tracking Trump's impeachment prospects, and they tell three different stories depending on the timeframe you care about.
Kalshi: 72% (all-time high, April 19 to 20, 2026)
This is the number that generated the headlines. Kalshi's contract measures the probability of impeachment at any point during Trump's current term, which runs through January 20, 2029. When the platform posted "BREAKING: Odds Trump is impeached again hits 72% an all-time high" on April 19, it was confirming both the figure and a surge in trading volume that reflected genuine, financially committed market sentiment rather than casual internet speculation.
Kalshi is a CFTC-regulated exchange. The people trading on it are not clicking a poll button. They are putting real money behind a view, and when that view reaches 72%, it carries weight that no survey can match.
Polymarket long-dated contract: 59.5% (before January 20, 2029)
This contract asks whether Trump will be impeached at any point before his current term expires in January 2029. At 59.5%, it represents a majority of traders believing that a House impeachment vote will happen at some point over the next three years. That figure is driven primarily by one variable: the 2026 midterms and the possibility that Democrats flip the House.
Polymarket short-dated contract: 13% (by December 31, 2026 only)
This is the number that separates the noise from the signal for near-term analysis. With Republicans holding a 218 to 214 House majority, there is simply no path to the 218 votes needed for an impeachment motion without at least some Republican support, which does not currently exist. The market's 13% reflects the small but non-zero probability of an extraordinary political development before year-end, not a realistic assessment of current trajectories.
Reading all three numbers together gives you the complete picture. The odds of impeachment happening at some point before 2029 have crossed the majority threshold. The odds of it happening in the next eight months are low. And the odds of Trump actually being removed from office remain far lower than any of the above figures.
What Actually Happened in 2026
The record odds did not come out of nowhere. They were the market's response to a specific and dramatic sequence of events.
The Iran threats that started everything
Trump's public statements during the Iran conflict in early April were the catalyst. His most widely reported post threatened that "a whole civilisation will die tonight" if Iran did not reopen the Strait of Hormuz by his deadline. He followed this with threats to destroy Iranian power plants and bridges. Democratic lawmakers described the language as both unhinged and potentially criminal. The phrase "war crimes" appeared in multiple official statements from sitting members of Congress.
To his credit, or at least to Washington's relief, Trump backed off the most extreme threats shortly before his own deadline and announced a ceasefire agreement. But by the time the ceasefire landed, the congressional response was already in motion.
Larson's 13 articles of impeachment
On April 7, Rep. John Larson of Connecticut filed 13 articles of impeachment against the president. The charges span a significant range of alleged conduct: circumventing Congress's war powers authority in connection with military actions in Iran, the militarisation of domestic law enforcement through National Guard deployments, and the use of immigration detention and deportation policies that Larson alleges were applied based on race, ethnicity, or political opposition.
Larson, who is in his 14th term representing the Hartford area, did not file this as a symbolic gesture. He explicitly called on Cabinet members to invoke the 25th Amendment, saying in his statement: "Members of the Cabinet and those closest to the President can act immediately. They have an obligation to put patriotism over politics and invoke the 25th Amendment."
Raskin's 25th Amendment commission bill
Rep. Jamie Raskin, who served as the lead House manager in Trump's second impeachment trial in 2021, introduced a 10-page bill in mid-April designed to create a formal mechanism for assessing presidential fitness under Section 4 of the 25th Amendment.
The bill would establish a 17-member commission authorised to carry out a medical and mental evaluation of the president. It attracted 50 Democratic co-sponsors on introduction. Senator Chris Murphy was among the most vocal advocates, posting that he would be "calling constitutional lawyers about the 25th Amendment" and describing Trump's behaviour as "completely, utterly unhinged."
A total of 70 Democratic lawmakers, including former Speaker Nancy Pelosi, called on Trump's Cabinet to invoke the 25th Amendment. The number climbed to 85 when senators were included in the count.
The December 2025 House vote that preceded this moment
This is not April 2026's first impeachment moment. In December 2025, the House voted on an impeachment resolution against Trump related to his statements that Democratic lawmakers urging military members to refuse unlawful orders were engaging in sedition. That effort failed, and notably, nearly two dozen Democrats voted against it. The experience taught Democratic leaders something important about the cost of pursuing impeachment without the votes to succeed, which is why many of them are currently urging restraint even as rank-and-file members file articles.
How Impeachment Works: The Constitutional Framework
Understanding what the prediction markets are actually measuring requires understanding the constitutional mechanics precisely, because there is widespread confusion between impeachment, conviction, and removal.
Stage one: House vote
The House of Representatives votes on articles of impeachment. A simple majority of 218 or more members voting in favour of at least one article constitutes impeachment. This is the legal equivalent of an indictment. The president is not removed from office when the House votes. He continues to govern throughout any subsequent Senate trial.
The current House composition is 218 Republicans and 214 Democrats. Every Republican voting against impeachment means Democrats need to flip at least two Republicans to reach a majority. No Republican has publicly supported the current impeachment effort. This is why the short-term 2026 probability sits at just 13%.
Stage two: Senate trial
After a House impeachment vote, the case moves to the Senate for a full trial. The chief justice presides. Both sides present arguments and evidence. Senators vote on whether to convict.
Conviction and removal requires 67 senators, a two-thirds supermajority. Republicans currently hold a Senate majority. Even if Democrats flip the House in November 2026, reaching 67 Senate votes for conviction would require a substantial number of Republican senators to vote against a Republican president. In both of Trump's previous Senate trials, that did not happen. The closest was the second trial in February 2021, when 57 senators voted to convict, including 7 Republicans. Still 10 short of the required 67.
Stage three: Removal
Removal only happens through Senate conviction. Since no president has ever been convicted and removed, every prediction market measuring impeachment probability is measuring something different from removal probability. Kalshi's 72% is a probability of a House vote. Polymarket's 99.4% NO on Trump leaving office by April 30 reflects the reality that removal remains constitutionally and politically near-impossible in the current environment.
The distinction matters for anyone trying to understand what these numbers actually mean. High impeachment odds and very low removal odds can coexist simultaneously, and they do right now.
The 25th Amendment Path: What It Is and Why It Is Even Less Likely
Alongside the formal impeachment effort, Democrats have been pursuing a parallel strategy through the 25th Amendment. The two mechanisms are often mentioned together but they work completely differently.
Section 4 of the 25th Amendment allows the vice president, together with a majority of the principal Cabinet officers, to send a written declaration to Congress stating that the president is unable to perform the duties of the office. The vice president then immediately assumes power as acting president.
The president can challenge this declaration. If he does, Congress has 21 days to vote. Both the House and Senate must vote by a two-thirds majority to sustain the declaration and keep the vice president in the acting role. If Congress does not reach that threshold within 21 days, the president resumes power.
Raskin's proposed commission bill would create a congressional body authorised to assess presidential fitness under this framework, potentially giving Congress a tool that operates outside the Cabinet. But there is a fundamental problem with this path that no legislation can easily fix: without Vice President JD Vance initiating the process, the mechanism does not move. There is no indication, public or private, that Vance is considering any such action. Absent his participation, the 25th Amendment path is constitutionally inert regardless of how many co-sponsors a bill attracts.
The prediction market's 99.4% NO on Trump leaving office by April 30 essentially reflects this reality
Trump's Approval Rating and Its Relationship to the Odds
Some polling released in April 2026 puts Trump's approval rating at approximately 33%, a figure that, if accurate, would represent one of the lowest approval ratings recorded for a sitting president since Richard Nixon's final months in 1974. Other polling shows 52% of voters supporting impeachment when asked directly.
Public opinion and congressional action, however, are not the same thing. A president with 33% approval and 52% public support for impeachment can still be protected from impeachment by a House majority that does not share those views. What matters for near-term impeachment probability is not the national polling number but the 218-214 math in the House chamber.
Where approval ratings do matter is in the November midterms. Historically, first midterm elections tend to punish the president's party. A president with 33% approval heading into a midterm cycle faces meaningful headwinds for his party's House candidates in competitive districts. Traders pricing the long-dated impeachment contracts above 59% are effectively betting that this approval trajectory translates into Democratic House gains in November.
The 2026 Midterms: The Single Most Important Variable
If you want to understand why the long-dated impeachment probability has crossed 50% while the short-dated probability sits at 13%, the midterms are the explanation.
Democrats need a net gain of roughly two to four House seats to flip the chamber, depending on specific race outcomes. In a midterm environment where the president's party is defending seats in competitive suburban districts, where approval ratings are suppressed, and where major policy controversies including the Iran conflict, tariff-driven inflation, and immigration enforcement are generating sustained negative coverage, a Democratic gain of that magnitude is within historical norms.
If Democrats take the House in November 2026, they will hold a majority beginning in January 2027. With that majority, they could bring articles of impeachment to a vote with only Democratic votes. They would not need a single Republican.
This is the scenario that traders are pricing into the 59.5% and 72% contracts. Not imminent impeachment under the current House, but the possibility of a Democratic House acting in 2027 or 2028 based on whatever the political and legal landscape looks like at that point.
Red Eagle Politics, a conservative commentator with over 100,000 followers on X, captured the Republican response to the Kalshi odds precisely: "Your daily reminder to NOT sit out the Midterms."
The Three Historical Impeachments That Shape How We Read These Numbers
Context matters enormously here. The United States has now seen five presidential impeachments across American history, three of them against Trump specifically.
Andrew Johnson, 1868: Johnson was impeached by the House on charges related to violations of the Tenure of Office Act. The Senate acquitted him by a single vote, 35 to 19, one short of the two-thirds needed at the time. He served the remainder of his term.
Bill Clinton, 1998: Clinton was impeached by the House on articles of perjury and obstruction of justice stemming from the Monica Lewinsky investigation. The Senate acquitted him with no article receiving more than 50 votes in favour of conviction. He completed his second term.
Donald Trump, first impeachment, December 2019: The House voted 230 to 197 to impeach Trump on articles of abuse of power and obstruction of Congress related to the Ukraine phone call. The Senate acquitted him in February 2020, with the first article failing 52 to 48 and the second 53 to 47.
Donald Trump, second impeachment, January 2021: The House voted 232 to 197 to impeach Trump on an article of incitement of insurrection following January 6. This was the most bipartisan impeachment in history, with 10 House Republicans voting in favour. The Senate ultimately voted 57 to 43 in favour of conviction in February 2021, exceeding a majority but falling 10 votes short of the required 67.
What the historical record establishes is a consistent pattern. A House impeachment vote is a constitutional and political action. A Senate conviction and removal is a different matter entirely, one that has never been achieved and that faces structural barriers in the current political environment that have not been present to a lesser degree in any previous case.
The 72% on Kalshi sits within this context. It reflects what traders believe will happen in the House, not what they believe will happen in the Senate.
What Different Outcomes Would Mean for the Prediction Markets
It is worth being precise about what various scenarios would do to the current odds.
If November 2026 midterms produce a Democratic House majority: The long-dated contracts at 59.5% and 72% would likely spike further as the necessary precondition for impeachment shifts from hypothetical to concrete. The short-dated 2026 contract would approach zero and resolve NO since any new Democratic majority would not take office until January 2027.
If Republicans maintain or expand their House majority in November: The long-dated contracts would fall significantly. Without a path to 218 votes through 2029, the probability of impeachment collapses toward the probability of a spontaneous Republican defection, which is historically close to zero.
If a dramatic political event occurs before the midterms: Something significant enough to break Republican unity, whether a major legal development, a severe foreign policy failure, or a health-related event, could move the short-dated 13% contract rapidly. This is the tail-risk scenario that keeps the short-term probability above zero.
If the Iran situation escalates further: Fresh military or diplomatic crises that generate genuinely bipartisan condemnation could crack Republican House unity in ways that previous controversies have not. This remains the most credible near-term pathway to movement in the short-dated contract.
What the Prediction Markets Are Not Saying
Given how much attention the 72% figure has received, it is worth being explicit about what it does not mean.
It does not mean traders expect Trump to be removed from office. Polymarket's market on Trump remaining in office through 2027 prices that probability at 83.5%. The two figures are not contradictory. You can believe a House vote is more likely than not before 2029 while simultaneously believing Trump almost certainly finishes his term.
It does not mean the market predicts imminent action. The 13% short-term figure is the more accurate reflection of near-term probability given current political conditions.
It does not mean public support translates directly into congressional action. The relationship between polling and votes in the House is mediated by party leadership, electoral incentives, and majority math, not by national opinion surveys.
And it does not mean that a third impeachment, if it occurred, would produce a different Senate outcome than the previous two. Every structural factor that produced acquittal in 2020 and 2021 remains largely in place. If anything, the Senate arithmetic for conviction has not improved from the Democratic perspective.
Comparison Table: All Active Trump Impeachment and Removal Markets
Disclaimer: This article is for informational purposes only. Nothing here constitutes financial, legal, or political advice. Prediction market probabilities change daily. Always verify current figures directly on Kalshi and Polymarket before making any trading decision.
