America votes on 3rd November. What happens afterwards could be considerably more dangerous than the election itself.
Donald Trump does not do defeat. He does humiliation, revenge and finding somebody else to blame. And on 3rd November, American voters may be about to hand him a humiliation he cannot shirk.
Our forecast gives Democrats a 91% chance of retaking the House, combining the probability of a Democratic sweep with that of a House-only victory. Control of the Senate also remains within reach. For Trump, losing both chambers would be a political catastrophe. But losing Congress is not the same as losing the presidency.
He would still command the world’s most powerful military, retain considerable executive authority and have more than two years left in office. Congress could investigate him, obstruct his agenda and make governing thoroughly miserable … but it cannot fully take away his power.
Imagine telling a toddler there is no more candy. Now imagine that toddler has access to nuclear weapons.
Trump could challenge the election results, retaliate against his opponents or seek a spectacular international victory. He could also negotiate. Confrontation and compromise have never been mutually exclusive in his political playbook.
Americans may vote to put limits on their president. The rest of the world may discover just how difficult those limits are to enforce, because whilst he may be limited to some degree at home, he will be far less limited abroad.
The Forecast
A Democratic takeover of the House is our central expectation. The Senate remains more uncertain, although a Democratic sweep is now our most likely individual outcome.
| Congressional outcome | Probability |
| Democrats win both chambers | 57% |
| Democrats win House, Republicans retain Senate | 34% |
| Republicans retain both chambers | 4% |
| Republicans retain House, Democrats win Senate | 5% |
| Total | 100% |
* Tact’s analytical assessment as at 15th October 2026. Probabilities reflect editorial judgement and may change as polling and campaign developments evolve.
Washington: The War at Home
The Democrats are preparing for victory. Trump may be preparing for something rather different.
Hakeem Jeffries has outlined plans to tackle living costs, healthcare, tariffs and the Iran war. Congressional investigations into Trump, his family and his administration could follow, bringing subpoenas, hearings and impeachment back into the political conversation. But that assumes the election result is accepted without a fight.
Trump has spent years questioning electoral outcomes that do not suit him. Another Republican defeat could trigger fresh allegations of fraud, demands for investigations and attempts to discredit a Democratic-controlled Congress. And this time, he would be making those accusations from the Oval Office.
Federal agencies have already sought sensitive voter information from state election authorities, while disputes over the deployment of federal security forces have raised uncomfortable questions about the boundaries of presidential power.
There are legal limits. Elections are administered primarily by the states. Trump cannot simply cancel the midterms or order the military to decide who takes their seats in Congress. But constitutional safeguards are not the same thing as political tranquility.
A disputed result and competing claims of legitimacy could produce weeks of confrontation. The danger is not necessarily another 6th January. It is a prolonged struggle over who has the authority to govern and who is prepared to recognise it.
Even if Democrats take their seats without obstruction, controlling Congress is considerably easier than controlling the presidency. They could investigate, block legislation and potentially impeach Trump. Removing him would still require a two-thirds Senate majority. Overriding his vetoes would require substantial Republican cooperation.
Meanwhile, every investigation becomes another witch hunt. Every blocked bill, another Democratic conspiracy. And Republicans contemplating life after Trump face the familiar choice between political independence and presidential retaliation.
There is also a dangerous interval between November’s election and the arrival of the new Congress in January. Republicans would retain control of both chambers during that period, giving Trump one final opportunity to push through his agenda before the balance of power changes.
The greatest domestic risk may not be that Trump refuses to recognise the election. It is that he recognises the result perfectly well and decides to make governing as difficult as possible for those who defeated him.
And a president fighting for political survival at home may become considerably less patient with opposition abroad.
Iran: Two Elections, One War and a Very Dangerous Window
Donald Trump has promised not to attack Iran before the American midterms. Before. An interesting choice of words. But Washington is not the only capital watching the electoral calendar.
Israel votes on 27th October, just seven days before Americans head to the polls. Netanyahu has rejected suggestions that he wants another pre-election attack on Iran, yet reported discussions with Washington about renewed military operations suggest the option remains alive. And Netanyahu has his own political survival to consider.
The danger is not necessarily that either leader wants another confrontation before voters cast their ballots. It is that both may become more willing to contemplate one afterwards.
Meanwhile, Tehran is making sure neither election takes place against a backdrop of calm.
Iran’s attacks on shipping through Hormuz keep energy markets nervous and pressure on Washington. Americans may not follow every military development in the Gulf. They certainly notice the price of petrol.
Washington can damage Iran’s economy. Tehran can damage everybody else’s.
The American blockade is inflicting enormous economic pain, but Tehran can spread the consequences through shipping disruption, threats to Gulf infrastructure and pressure on regional governments.
Trump faces three choices.
He could negotiate. Washington and Tehran have explored a phased arrangement linking freedom of navigation through Hormuz to relief from the American blockade. Both could claim victory. The difficulty is that neither wants to surrender its leverage first.
He could escalate. A Republican defeat might strengthen Trump’s determination to demonstrate that he remains firmly in charge. Renewed strikes against Iranian military infrastructure could offer the appearance of decisive action. But bombing Iran again would not necessarily reopen Hormuz or end attacks on shipping. It could simply invite another round of retaliation.
Or the confrontation could grind on. The blockade continues, shipping remains vulnerable and both sides claim the other is weakening. Tehran keeps economic pressure on an unpopular American president while Trump struggles to accept a conflict without a clear victory.
Israel complicates every scenario. Its own security calculations, Iranian provocations or a confrontation involving Hezbollah could force Washington’s hand, regardless of Trump’s preferred timetable.
The danger is not simply that Trump might lash out after November. It is that Washington, Tehran and Jerusalem could each convince themselves that the next move must be decisive.
And when three governments start thinking that way, somebody usually discovers just how badly they have miscalculated.
Ukraine and NATO: When Your Greatest Ally Becomes Your Greatest Liability
Ukraine may discover that Trump’s response to electoral defeat is not to abandon his peace plan. It is to make refusing it considerably more painful.
Washington has spent months pushing Kyiv towards a settlement. Putin has shown little inclination to offer terms Ukraine could reasonably accept. Trump, meanwhile, appears increasingly impatient with the country being invaded rather than the country doing the invading. And recent developments hardly inspire confidence.
Trump announced an energy ceasefire that Russia promptly disregarded, then eased restrictions on Russian diesel exports while Russian missiles continued falling on Ukrainian cities. Italy’s Giorgia Meloni, an increasingly vocal critic of Trump in recent months, condemned the move.
Zelenskyy has since declared the energy ceasefire effectively dead, and Ukraine has resumed strikes on Russian refineries.
An interesting approach to peacemaking. Reward the aggressor, threaten the victim and then express surprise when everybody refuses to cooperate.
But the real danger lies in what happens after November.
Washington has reportedly threatened restrictions on intelligence-sharing and weapons procurement unless Ukraine stops attacking Russian energy infrastructure. These are serious threats. Ukraine remains heavily dependent on American intelligence, technology and air defence capabilities that Europe cannot easily replace.
A Republican defeat could make Trump less interested in persuading Zelenskyy and more inclined to force his hand. Intelligence restrictions, delayed or halted weapons sales to European nations passing them on to Ukraine, or demands for territorial concessions could leave Ukraine dangerously exposed.
None would require Washington to openly side with Moscow. The effect could nevertheless be much the same.
And Putin would have every reason to wait. Why make concessions when the American president appears increasingly willing to pressure Kyiv on his behalf?
Trump could, of course, eventually decide that Putin is obstructing his search for a diplomatic triumph and turn against Moscow instead. But recent events offer little reason to make that our central expectation.
For Europe, the implications go considerably further.
NATO’s credibility has already suffered from repeated questions about Washington’s commitment to its allies. The greater danger is an increasingly transactional American approach to European security, where assistance becomes conditional and allies are left guessing what Washington might demand next.
Trump does not need to withdraw from NATO to weaken it. He can remain inside the alliance while making its members increasingly uncertain about the terms of American allyship.
Europe could find itself expected to assume greater responsibility for Ukraine while remaining dependent on American military systems and intelligence that Washington can use as leverage.
The nightmare for Europe is not simply an America that walks away. It is an America that stays, but starts charging a political price for its presence.
And for Putin, that uncertainty may be worth almost as much as another battlefield victory.
China: The Trade War Nobody Can Afford to Win
China might look like an attractive target for a president nursing the wounds of an electoral humiliation. It is economically powerful, politically convenient and sufficiently unpopular in Washington to make another confrontation tempting.
There is just one problem. Beijing can hit back. And unlike some of America’s allies, it is not particularly worried about hurting Trump’s feelings.
September’s Trump-Xi summit extended their fragile trade truce until 10th January 2027. But the underlying disputes remain unresolved. Tariffs, technology restrictions, critical minerals and market access are still very much on the table.
A Republican defeat could tempt Trump to reopen hostilities. New tariffs or tighter technology restrictions would make excellent political theatre. Whether they would achieve anything useful is another matter.
China’s dominance of rare earth processing gives Beijing leverage over American manufacturers, technology companies and defence industries. Washington can restrict Chinese access to advanced semiconductors and other technologies, but neither side can inflict serious economic damage without risking retaliation.
And America’s dependence on Chinese critical minerals cannot be eliminated with another executive order and a presidential signature. Another trade war could also raise costs for the very American voters who have just punished Republicans over the economy.
There is little political genius in punishing China by making life more expensive for Americans. But Trump has never been particularly troubled by that contradiction.
Xi has his own problems. China’s domestic economy remains under pressure, and Beijing has good reasons to preserve access to American markets. But Xi cannot afford to appear intimidated by a president whose political authority has just been weakened.
Trump might believe defeat demands a demonstration of strength. Xi might calculate that a weakened president is more likely to threaten than act. And the trouble starts when both decide the other cannot afford to call their bluff.
Alternatively, Trump could pursue a grand bargain with Beijing and claim a diplomatic triumph. Xi might welcome one, provided the price is right.
Neither Trump nor Xi can afford another full-blown trade war. But both have domestic political reasons to appear tougher than the other. And when neither side wants to blink, an avoidable confrontation can become a very expensive reality.
Canada, Greenland and the International Order: With Friends Like These
China can retaliate. Iran can disrupt global energy markets. Russia can make peace in Ukraine almost impossible. America’s allies, on the other hand, make rather easier targets.
Canada has discovered that friendship and decades of economic integration offer little protection from Trump’s tariffs. The difficulty is that punishing Ottawa without hurting American manufacturers is rather like setting fire to your neighbour’s house and hoping the flames respect the property line. But Canada is not waiting for the next match to be struck.
Mark Carney’s government is accelerating trade diversification towards India, Europe and Asia. The objective is no longer simply to negotiate better terms with Washington. It is to reduce Canada’s dependence on an increasingly unpredictable neighbour.
Then there is Greenland.
September’s agreement with Denmark and Greenland expanded American military access without transferring sovereignty. Apparently, negotiation can achieve quite a lot without threatening to annex somebody else’s country. Who knew?
Yet Trump has already returned to the subject, announcing that major oil, gas and mineral exploration is imminent. Greenland’s resources remain subject to Greenlandic law, not presidential enthusiasm. An awkward detail, admittedly, but sovereignty often is.
International institutions are discovering that American hostility is not reserved for foreign governments. Washington has now sanctioned the International Criminal Court itself, taking its confrontation with international justice well beyond diplomatic rhetoric. The wider damage may prove more consequential than any individual dispute.
Every tariff threat encourages another country to diversify. Every confrontation with an ally makes alternative partnerships more attractive. And every attack on an international institution weakens Washington’s ability to rely on that institution when it suits American interests.
Trump may believe he is demonstrating American strength. He is instead accelerating the world’s determination to become less dependent on it. And that damage will long outlast his presidency.
Our Predictions: What Happens Next?
A Democratic House victory would constrain Trump’s legislative agenda. It would not remove his capacity to retaliate.
Our assessment of the principal risks between 4th November 2026 and 31st March 2027:
| Development | Probability |
| Democratic-controlled House committees issue formal subpoenas targeting senior Trump administration officials | 90% |
| Trump publicly alleges widespread fraud or illegitimacy in the congressional election results | 75% |
| Washington formally changes its negotiating demands concerning Ukraine | 70% |
| The administration introduces new formal restrictions on intelligence-sharing or US-origin military support to Ukraine | 60% |
| The US launches a new sustained military operation against Iran | 40% |
| The US and Iran announce a substantive agreement or framework covering Hormuz or the American blockade | 40% |
*Forecast horizon: 4th November 2026 to 31st March 2027. Probabilities are TACT’s analytical judgements as at 15th October 2026, conditional on Democratic control of the House. They are not statistical model outputs. Events are not mutually exclusive.
The Real Danger Begins on 4th November
A Democratic victory would not end the Trump presidency. It would simply make the remaining two years considerably more combustible.
Congress could investigate him, obstruct his agenda and expose his administration’s failures. But it could not compel him to accept defeat gracefully. And graciousness has never been one of Trump’s more conspicuous qualities.
America’s adversaries may see opportunity in his political difficulties. Its allies may see another reason to reduce their dependence on Washington. Both could encourage precisely the instability Trump claims he alone can prevent.
The danger is not that Trump becomes powerless after November. It is that he becomes politically weaker while retaining the ability to make his frustrations everybody else’s problem.
On 3rd November, Americans will decide who controls Congress. On 4th November, the rest of the world will begin discovering what Donald Trump is prepared to do with the power he has left.