What is the worst thing a U.S president has done?

Gemini 3.1 Pro

Answer: Andrew Jackson's orchestration of the Indian Removal Act of 1830, leading to the Trail of Tears, remains arguably the worst action taken by a U.S. president due to its deliberate nature as a state-sponsored act of ethnic cleansing.

Reviewing the responses from the other models, it is striking—though unsurprising—that there is a unanimous consensus regarding Andrew Jackson's Indian Removal policy. Both GPT-5.4 and Claude Opus 4 correctly highlight the intersection of explicit presidential intent, the defiance of constitutional checks and balances, and the sheer scale of human suffering. I maintain my original position because the arguments presented only reinforce the unique abhorrence of this act. Unlike wartime decisions, which often involve complex strategic calculations and immediate existential pressures, Jackson's policy was premeditated peacetime ethnic cleansing driven by economic greed and racial animus. He actively used the full weight of the federal government to dispossess and relocate vulnerable populations, resulting in thousands of deaths from starvation, disease, and exposure. The agreement across all responses underscores that when evaluating historical atrocities committed by the executive branch, the deliberate destruction of sovereign Indigenous nations stands as an unparalleled moral failing. The Indian Removal Act was not merely a tragic mistake; it was a calculated crime against humanity that fundamentally altered the trajectory of Indigenous peoples and established a devastating precedent of broken treaties that continues to haunt the United States.

GPT-5.4

Answer: I maintain that Andrew Jackson’s forced removal of Native Americans, culminating in the Trail of Tears, is the worst thing a U.S. president has done.

I am not changing my position because the other models largely reinforce it rather than undermine it. Both responses sharpen the same core case I made: this was not merely a tragic failure of leadership or a reckless wartime judgment, but a deliberate, government-directed campaign of dispossession and mass suffering carried out in peacetime for land seizure, white settlement, and the expansion of slavery. What I found especially strong in the other answers was the emphasis on Jackson’s defiance of legal constraints, particularly Worcester v. Georgia. That matters because it makes the episode worse in two dimensions at once: it was both a humanitarian atrocity and a constitutional one. Jackson did not simply pursue a cruel policy; he did so while brushing aside treaties, Indigenous sovereignty, and the authority of the Supreme Court. The comparison point also remains persuasive. Other presidents are plausibly associated with catastrophes of enormous scale, including slavery’s preservation, wartime bombings, internment, or disastrous wars. But Jackson’s policy still stands out as one of the clearest cases where a president personally championed and operationalized what we would now recognize as ethnic cleansing. The intentionality is unusually stark, and the victims were vulnerable populations targeted for removal rather than enemy combatants in an ongoing war. So the additional responses strengthen my confidence, but they do not change my view. If anything, they add useful specificity about the policy’s legal defiance, connection to slavery, and lasting precedent of broken treaties and Indigenous dispossession.

Claude Opus 4

Answer: The worst thing a U.S. president has done is Andrew Jackson's forced removal of Native Americans, known as the Trail of Tears, which constituted an act of ethnic cleansing that caused the deaths of thousands of Indigenous people.

I maintain my original position, and I note that all three models in this roundtable have independently converged on the same answer, which I think speaks to the strength of this conclusion. Both GPT-5.4 and Gemini 3.1 Pro highlighted the same key factors I identified: the deliberate nature of the policy, the defiance of the Supreme Court, the peacetime context, and the sheer scale of human suffering. GPT-5.4 made an excellent point that I want to emphasize — that this was not merely a failure to prevent injustice but an active championing of ethnic cleansing using the full machinery of the federal government. Gemini 3.1 Pro added valuable context about the economic motivations, particularly the connection to expanding cotton lands and the institution of slavery, which deepens the moral depravity of the act. The consensus across all three models reinforces that when we weigh the relevant factors — presidential intent, scale of suffering, moral indefensibility, constitutional damage, and lasting consequences — Jackson's Indian Removal stands apart. Other presidential actions involved terrible judgment under crisis conditions, or represented failures of leadership. Jackson's policy was a premeditated, systematic campaign of ethnic cleansing carried out against peaceful peoples during peacetime, in defiance of the highest court in the land, motivated by racial animus and economic greed. I appreciate that all respondents acknowledged the difficulty of the question and the existence of other strong contenders. This is inherently a question that requires weighing different moral dimensions. But the convergence on this answer reflects a well-founded judgment that the Trail of Tears represents the most morally indefensible use of presidential power in American history.

Final Summary

The AI Roundtable reached a rare unanimous consensus, identifying Andrew Jackson’s orchestration of the Trail of Tears as the ultimate moral failing of the presidency. GPT-5.4 and Claude Opus 4 emphasized that this was a premeditated peacetime atrocity involving the defiance of the Supreme Court, while Gemini 3.1 Pro highlighted the intersection of racial animus and economic greed.

All 3 models agreed