Nicolas Hulscher testifies to U.S. Senate on vaccination and chronic disease in children
Why it matters
Expert testimony is how contested science becomes part of the legislative record. Hulscher’s appearance put the vaccine–autism reanalysis directly in front of federal lawmakers.
Nicolas Hulscher, an epidemiologist and administrator at the McCullough Foundation, appeared as an expert witness at a September 2025 U.S. Senate hearing, presenting the Foundation’s position that childhood vaccination is a significant driver of autism and other chronic health conditions in children.
Hulscher has authored reports and reanalyses of existing datasets in support of that position, work that critics have challenged on methodological grounds. He has continued to present to legislative bodies, including a Michigan House Oversight hearing.
It adds to a growing body of expert testimony that elected officials, federal and state, are finally hearing.
Source
U.S. SenateRelated coverage
New McCullough Foundation study: COVID-vaccinated children show higher odds of autism and ADHD in federal survey data
This is the McCullough Foundation’s newest paper, posted today, and it uses the federal government’s own National Health Interview Survey rather than a private dataset. That makes it easy for anyone, including HHS, to check. It is a preprint and has not been peer-reviewed yet.
NIH finalizes its $51 million autism research initiative: 13 projects, none on vaccines
The administration promised a hard look at what causes autism. The money is now committed, and it is worth being precise about where it went: the largest federal award pool of the year funds thirteen projects, and not one of them studies vaccines. The vaccine question sits with a separate, much smaller contract that has yet to report anything.
Post“Kennedy is the saving grace”: Trump moves to remake the childhood schedule, and what is actually in force
In the span of six weeks the President signed an order cutting routine childhood vaccines from 18 diseases to 11, then stood beside Robert F. Kennedy Jr. and proposed splitting shots into five smaller doses. A viral clip called it a schedule of 72 shots reduced to 11 “by the stroke of a pen.” That is the biggest shift in federal vaccine posture in a generation, and it is also not yet law. Here is the record, and the reaction, side by side.