Ledger · Second term · № 242
'By September, we will know what has caused the autism epidemic'
Never delivered“By September, we will know what has caused the autism epidemic and we'll be able to eliminate those exposures.”
- Promised
- , Cabinet meeting at the White House, said by HHS Secretary Robert F. Kennedy Jr. with Trump present and repeatedly endorsed by Trump
- Stated deadline
- “by September” → August 29, 2025
- Overdue by
- 1 year as of September 22, 2026
- Re-promised
- 3 times with a fresh deadline
- Topic
- Health care
- Era
- Second term
What happened
On September 22, 2025 Trump and Kennedy held a White House event announcing not a cause but a claimed association, with Trump telling pregnant women 'don't take Tylenol.' Major medical groups pushed back hard. By October 29, 2025 Kennedy himself conceded the evidence 'is not sufficient to say it definitely causes autism.' No cause of the autism epidemic was identified.