ClaimsPeople

Gary Marcus

Gary Marcus is an author and AI entrepreneur and professor emeritus at NYU; he has written six books, including Rebooting AI and Taming Silicon Valley, founded Geometric Intelligence (bought by Uber), testified at the May 2023 US Senate AI hearing, and writes a newsletter with over 121,000 subscribers.

712 claims collected, 213 researched, 103 resolved. Report of 4 November 2026, method 0.1.0+c876030c.

Scores by kind of claim

Each kind of claim is scored on its own, out of 100: the share that held up, with the range it likely falls in. Fewer resolved claims give a wider range.

  • Factual claims

    Statements about the present or the past, checked against the record: did they hold up?

    79 72 85

    High confidence, 64 factual claims resolved. From 18 documents, 2019 to 2026; 19 documents sampled from 37 candidates found.

    Not scored: 32 unresolvable, 4 checkable only against their own records.

  • Predictions

    Statements about events outside the person's control, checked once they fell due: did they come true?

    80 72 88

    Medium confidence, 38 predictions resolved. From 7 documents, 2019 to 2025; 19 documents sampled from 37 candidates found.

    Not scored: 60 unresolvable. 13 more fall due later.

    Does not yet allow for how likely each prediction was when made.

  • Promises

    Commitments to the person's or organisation's own future action, with something to deliver: was it delivered?

    Insufficient record: 1 promise resolved, 5 needed for a score.

    Not scored: 1 unresolvable.

All types combined: 79 (likely 74 to 84, high confidence), from 102 claims: 64 factual claims, 38 predictions. It mixes kinds of claim in different proportions for different people, so compare people kind by kind.

Gary Marcus's claims

Back to the list

Gary Marcus

Open its page

Factual Other Political

“Per Giuliani’s disclosure tonight, every tweet and statement like this was a lie.”

Gary Marcus, writing on X 17 January 2019 Post by @GaryMarcus on X, 2019-01-17 (X)

According to Giuliani's disclosure on 2019-01-17, every tweet and statement like the one referenced was a lie, and Trump's campaign colluded.

Mostly false False in substance, right in a detail.

What would count as true or false

Judge this as of 17 January 2019, on what Giuliani actually said that night: his public remarks on 16–17 January 2019, including his CNN interview. The proposition is that his disclosure showed the 'no collusion' statements were lies and that the Trump campaign colluded. Later findings such as the Mueller report do not change what Giuliani said, but they can show context. TRUE: Giuliani acknowledged that the Trump campaign colluded or coordinated with Russia, directly contradicting the earlier 'no collusion' statements. MOSTLY TRUE: he clearly admitted that campaign members colluded or coordinated, though in hedged wording. MIXED: he admitted substantive campaign contacts or coordination short of collusion, such as sharing campaign data, so the statements were contradicted only in part. MOSTLY FALSE: he only narrowed his defense, saying he had never claimed that no one in the campaign colluded and only that Trump personally did not, without admitting any collusion. On that reading, the claim stretches a real retreat into an admission. FALSE: he made no statement bearing on campaign collusion, or he reaffirmed that there was none.

Evidence

  1. Trump lawyer Giuliani says does not know if campaign colluded with Russia Reuters (via The Star) · 17 January 2019
    “"I never said there was no collusion between the campaign, or between people in the campaign. I have no idea," Giuliani told the cable news network.”
  2. Trump lawyer Giuliani says does not know if campaign colluded with Russia Reuters (via The Star) · 17 January 2019
    “"I know the president wasn’t involved in collusion. How would I know about anybody else? I wouldn’t know," he said.”
  3. Giuliani: Trump Campaign May Have Colluded With Russia, but Not Trump VOA News · 17 January 2019
    “On Thursday, Giuliani sought to clarify his remarks, saying, "I represent only President Trump not the Trump campaign. There was no collusion by President Trump in any way, shape or form. Likewise, I have no knowledge of any collusion by any of the thousands of people who worked on the campaign."”

Reasoning

Reuters reports that in his CNN interview Giuliani said "I never said there was no collusion between the campaign, or between people in the campaign. I have no idea" (E1). He then confirmed that he knew only that the president was not involved (E2). VOA reports that in his Thursday clarification Giuliani said Trump did not collude and that he had no knowledge of collusion by campaign staff (E4). This is a narrower defense, not an admission that the campaign colluded, so the claim treats a retreat as an admission.

Cite this claim

Gary Marcus, “According to Giuliani's disclosure on 2019-01-17, every tweet and statement like the one referenced was a lie, and Trump's campaign colluded.” (said 17 January 2019). Verdict: mostly false. Reliability API, claim c_0ef9ee7a3968, method 0.1.0+c876030c. https://epistacklabs.com/claims/c_0ef9ee7a3968

Claims without a verdict

Is a verdict here wrong, or do you speak for Gary Marcus? Reply on the claim's own page, with the form at its foot (how replies work). Verdicts are made automatically; how verdicts and scores are made.