In a perfect illustration of this administration’s dedication to substituting scientific consensus with presidential gut instinct, President Trump recently used the White House as a platform to declare a non-existent link between the common painkiller Tylenol (acetaminophen/paracetamol) and autism. This fear-mongering, made without citing a single piece of new evidence, was immediately and thoroughly debunked by actual scientists. A major new umbrella review from the University of Liverpool—the highest form of evidence synthesis—has just confirmed what we already knew: the claims are baseless, the previous research was critically flawed, and the only demonstrable danger is a president who trades facts for vibes and puts public health at risk for political posturing.