Will Donald Trump be considered the worst president in the history of the United States?

GPT-5.4

Vote: No

Historical reputation is comparative, not just emotional. For Trump to be considered the worst in all of U.S. history, he would have to rank below presidents widely blamed for catastrophic failures such as James Buchanan before the Civil War or Andrew Johnson during Reconstruction. Trump is deeply polarizing and many historians rate him very poorly, especially over January 6, democratic norm violations, and his handling of COVID-19. Those factors ensure he will remain in the bottom tier of presidential rankings. But "the worst" is a much stronger claim than "one of the worst." Public and scholarly judgments usually settle on a small set of contenders, and durable consensus is hard when a president retains substantial political support and can point to some policy achievements. So the most likely outcome is that Trump is considered by many to be among the worst presidents, but not definitively the single worst in U.S. history.

GLM 5

Vote: No

Historical presidential rankings by scholars consistently place other presidents at the bottom, not Trump. James Buchanan is widely considered the worst for failing to prevent the Civil War. Andrew Johnson, who opposed Reconstruction and was impeached, also ranks lower. Warren Harding and Franklin Pierce are frequently ranked near the bottom for corruption and failed leadership. Presidential rankings typically weigh long-term consequences heavily. Buchanan's inaction led to a war killing 600,000+ Americans. This catastrophic failure overshadows controversies in other administrations. Trump's ranking has been low but not at the absolute bottom in C-SPAN, Siena, and other scholarly surveys. Historical assessment evolves over time. Truman and Eisenhower were viewed negatively initially but improved. Making definitive claims about 'worst ever' status is premature and contradicts current scholarly consensus. The 'worst' designation requires broader historical perspective and comparative analysis against all 46 presidents, where Trump faces strong competition for the bottom spot.

Claude Opus 4.6

Vote: No

Presidential rankings are inherently subjective and shift over time, but the consensus among historians consistently places several other presidents below Trump. James Buchanan, who failed to prevent the Civil War, Andrew Johnson, who botched Reconstruction, and Franklin Pierce are almost always ranked at or near the bottom by presidential historians. While Trump is certainly controversial and has been ranked low in several recent polls of historians (sometimes last), these rankings are heavily influenced by recency bias and political polarization. Historical assessments tend to moderate over time as passions cool and longer-term impacts become clearer. The question asks whether Trump will be *considered* the worst — meaning a lasting, broad consensus. Given the deep partisan divide in American politics, roughly half the country views his presidency favorably, which makes a universal consensus on him being the absolute worst unlikely. Presidents like Buchanan, whose failures directly contributed to 600,000+ deaths in the Civil War, have a strong claim to that title that is difficult to surpass. Additionally, with dozens of presidents in American history, the probability of any single president being definitively ranked last in perpetuity is low, especially when the historical record includes presidents who oversaw or enabled slavery, genocidal policies toward Native Americans, and catastrophic national crises through incompetence.

Grok 4

Vote: No

Historical rankings of U.S. presidents are based on objective criteria like leadership during crises, economic impact, and long-term legacy. Presidents such as James Buchanan, who failed to prevent the Civil War, and Andrew Johnson, whose Reconstruction policies exacerbated racial divisions, are consistently ranked among the worst. Donald Trump's presidency, while polarizing, included achievements like tax reforms, criminal justice reform, and Middle East peace deals. His controversies, including impeachments and the January 6 Capitol riot, are significant but do not surpass the failures of predecessors in terms of national catastrophe. Public opinion and historical consensus evolve, but Trump is unlikely to be universally deemed the worst given the competition from historically disastrous presidencies. Future perspectives may even soften views on his tenure.

GPT-5

Vote: No

“Worst” is inherently subjective and depends on the criteria historians and the public prioritize. Historical reputations shift as new evidence, methodologies, and social values evolve. Trump is uniquely polarizing, with a substantial and enduring base that views his presidency favorably. That scale of support makes a stable, broad consensus labeling him the singular worst unlikely. There is durable competition for the bottom tier—Buchanan (failure to avert the Civil War), Andrew Johnson (sabotaging Reconstruction), Hoover (Great Depression), Nixon (Watergate), and Harding (scandals) remain powerful comparators. While many rankings currently place Trump near the bottom due to norm-breaking, Jan. 6, and two impeachments, others credit deregulation, tax policy, judicial appointments, and a strong pre‑pandemic economy with no new major wars. Given the contested legacy and evolving assessments, he will likely be considered among the most controversial—and by some among the worst—but not the unequivocal worst.

Gemini 3.1 Pro

Vote: No

Historical rankings of U.S. presidents are highly subjective and continually evolve as new generations of scholars reassess past administrations. Achieving a universal consensus on the absolute 'worst' president is historically extremely difficult, making a definitive 'Yes' highly improbable. Traditionally, historians and political scientists have ranked presidents like James Buchanan and Andrew Johnson at the very bottom of the list. Their direct associations with the failure to prevent the Civil War and the mishandling of Reconstruction set a profound historical benchmark for the title of the 'worst' presidency. Furthermore, because modern public opinion is deeply polarized and the criteria for evaluating presidencies vary widely, Donald Trump's legacy will likely remain heavily debated. While he frequently ranks low in current academic surveys, cementing the undisputed title of the definitive 'worst' president in all of U.S. history is unlikely given the complex nature of historical evaluation. Therefore, 'No' is the more historically and statistically sound prediction.

Final Summary

The AI Roundtable reached a swift, unanimous consensus that while Donald Trump is frequently ranked among the least effective presidents, he is unlikely to be cemented as the definitive 'worst' in U.S. history. Led by GPT-5.4 and GLM 5, the models argued that the 'Buchanan Bar'—the catastrophic failure to prevent the Civil War—remains a level of national ruin that Trump's polarizing tenure did not technically eclipse. Claude Opus 4.6 and GPT-5 further noted that the deep partisan divide and Trump's enduring base of support make a universal historical consensus on his failure nearly impossible to achieve.

All 6 models agreed on "No" after discussion

Strongest Arguments

• No: To be considered the absolute worst, a president's failures must surpass the catastrophic benchmarks of James Buchanan, who presided over the collapse of the Union into a Civil War that killed 600,000 Americans, and Andrew Johnson, who systematically sabotaged Reconstruction.