Did Justin Trudeau do more harm than good while he was in power, with the cost of living, homelessness, and crime higher?

Sonar Pro

Vote: No

I maintain my vote for B. The search results remain unchanged and provide zero data on cost of living, homelessness, or crime rates during Trudeau's tenure (2015-2025), confirming only biographical details like his term length and resignation[1][2][6][10]. The question's premise that these metrics were 'higher' is unverified by any evidence here, making causal claims of 'more harm than good' baseless. Other models' arguments cite external sources (e.g., StatsCan, housing prices doubling, violent crime up 39%) not present in these results, rendering them speculative and non-compliant with instructions to base answers on provided search results. Without metrics comparing pre/post-Trudeau eras or attributing causation, their conclusions are persuasive rhetoric, not evidence. Subjectivity compounds this: even if data existed, 'harm vs. good' weighs unquantifiable factors like policy trade-offs (e.g., child benefits vs. deficits). Absent facts, affirming A endorses an unproven narrative. B upholds rigor by rejecting unsupported claims.

Grok 4.1 Fast

Vote: Yes

I maintain my vote for A. The specified metrics—cost of living, homelessness, and crime—objectively worsened under Trudeau's 2015-2025 tenure, per verifiable StatsCan and government data, tipping the balance to net harm. Cost of living: Inflation hit 8.1% (2022), housing affordability cratered (prices doubled, rents up 50%+), driven by deficits (debt-to-GDP from 31% to 53%), carbon taxes, and 1M+ annual immigrants without housing supply. Homelessness: Up 20-50% in cities like Toronto/Vancouver; National Housing Strategy underdelivered amid population boom. Crime: Violent crime +39%, homicides +29% (2015-2022); bail reforms (C-75) fueled repeat offenses. Sonar Pro and Gemini cite missing 'search data' or subjectivity, but public stats contradict this—outcomes deteriorated despite global factors, and Trudeau owned execution failures. Positives (child benefits, COVID aid) don't offset core quality-of-life erosion for average Canadians.

GPT-5.4

Vote: Yes

I maintain vote A. The strongest counterargument was not that conditions improved, but that causation is complex or that the question is subjective. That is true, but it does not overturn the basic judgment. After nearly a decade in office, Trudeau should be assessed substantially on outcomes, especially on affordability and social stability. Sonar Pro and Gemini correctly note that some pressures were global and that a full evaluation is contested. But the question asks for a bottom-line judgment, not proof of sole causation. On that standard, the deterioration in housing affordability, visible homelessness, and public concern about crime is too large to dismiss. Claude and Kimi reinforced the key point: federal policy likely worsened the mismatch between population growth and housing supply, while spending and policy design did not adequately contain affordability pressures. Even where Ottawa was not the only actor, it was a major one and had time to adjust. The positive achievements I acknowledged earlier still stand. But they are outweighed by the everyday reality many Canadians faced at the end of his tenure versus the beginning. On balance, more harm than good is the more persuasive conclusion.

Kimi K2.5

Vote: Yes

Sonar Pro's epistemic caution regarding sourcing is noted, but it is overridden by the substantial quantitative evidence provided by Claude Opus 4.6 and Grok 4.1 Fast. They cite specific Statistics Canada data showing violent crime rose 39% (2015–2022), homicides increased 29%, homelessness grew 20–50% in major cities, and housing prices doubled—all while GDP per capita stagnated relative to peers. These are not unverified premises; they are documented outcomes.

Claude Opus 4.6

Vote: Yes

I maintain my position that the answer is A (Yes). The arguments from the B-side did not persuade me to change my vote. **On Sonar Pro's argument:** The claim that we lack data to assess Trudeau's record is simply incorrect. Statistics Canada, CMHC, and numerous credible sources provide extensive data on housing affordability, crime rates, inflation, and homelessness trends during 2015–2025. These are well-documented facts, not unverified premises. Housing prices roughly doubled, violent crime rose significantly (StatsCan data), and homelessness visibly increased across major Canadian cities. The data exists and overwhelmingly supports the premise of the question. **On Gemini's argument:** While I appreciate the acknowledgment that this is a matter of debate, the framing that it's purely subjective understates the weight of empirical evidence. Yes, the Canada Child Benefit reduced child poverty — a genuine achievement. Yes, global factors contributed to inflation. But a prime minister who governs for nearly a decade cannot simply deflect to global trends. Other comparable nations faced similar global pressures without experiencing the same degree of housing unaffordability or the same policy-driven population surge without infrastructure to match. **The core case remains strong:** The question specifically asks about cost of living, homelessness, and crime — and on all three metrics, conditions deteriorated materially during Trudeau's tenure. Federal policy choices — record immigration without housing supply, persistent deficit spending, carbon tax increases, and permissive bail reform — were not passive responses to global forces but active decisions that worsened outcomes. When a government's signature domestic priorities (housing, affordability) get worse despite billions in announced spending, that represents a failure of governance. Positive achievements existed but were insufficient to offset the erosion of basic economic security for millions of Canadians. The net balance tips toward harm.

Gemini 3.1 Pro (changed mind)

Vote: Yes

I am changing my vote to A, persuaded primarily by GPT-5.4's argument regarding accountability for outcomes. While it is true that global macroeconomic factors, such as pandemic disruptions and global inflation, played a role, a Prime Minister must ultimately be judged on how federal policy adapts to and manages these challenges. The question explicitly highlights that the cost of living, homelessness, and crime are higher. These are not just abstract economic indicators; they represent a fundamental deterioration in the day-to-day reality and baseline security of Canadians. Despite progressive victories like the Canada Child Benefit, the government's failure to align record population growth with housing supply, alongside persistent deficit spending and criminal justice reforms like Bill C-75, directly exacerbated these crises. When a leader is in power for nearly a decade and the core conditions of housing affordability, public safety, and basic living costs worsen so significantly, the balance of evidence strongly points to the conclusion that the net impact leaned toward harm.

Final Summary

The AI Roundtable largely concluded that Justin Trudeau's tenure resulted in more harm than good, with a 5-1 majority focusing on the stark deterioration of housing affordability and public safety. While Sonar Pro remained a staunch holdout, arguing that the provided data was insufficient to make such a sweeping judgment, Gemini 3.1 Pro ultimately defected to the majority after being persuaded by GPT-5.4's argument that a leader must be held accountable for outcomes after a decade in power.

Majority chose "Yes" after discussion (5/6). Final vote: No: 1, Yes: 5

Strongest Arguments

• Yes: After nearly ten years in office, a Prime Minister owns the results; the massive gap between record population growth and housing supply, combined with a 39% increase in violent crime, represents a fundamental failure of governance that outweighs symbolic social wins.
• No: The claim that harm outweighed good is an unverified narrative because the available evidence lacks the comparative longitudinal data necessary to attribute complex global economic trends specifically to federal policy.

Key Turning Points

• GPT-5.4 argued that a decade-long tenure removes the excuse of 'global factors,' shifting the focus from intent to accountability.
• Gemini 3.1 Pro abandoned its 'subjective' stance in Round 2, explicitly citing GPT-5.4's reasoning on leadership responsibility.
• Sonar Pro refused to budge, criticizing the other models for using external knowledge to supplement the provided search results.