By Maryanne Demasi at Brownstone dot org.

Autism has long been the untouchable subject in American politics. For decades, federal agencies tiptoed around it, steering research toward genetics while carefully avoiding controversial environmental or pharmaceutical questions.

That ended at the White House this morning, when President Donald Trump tore through the taboo with a blunt and sometimes incendiary performance that left even his own health chiefs scrambling to keep pace.

Flanked by Health Secretary Robert F. Kennedy, Jr., NIH Director Jay Bhattacharya, FDA Commissioner Marty Makary, CMS Adminstrator Dr Mehmet Oz, and other senior officials, Trump declared autism a "horrible, horrible crisis" and recounted its rise in startling terms.

"Just a few decades ago, one in 10,000 children had autism…now it's one in 31, but in some areas, it's much worse than that, if you can believe it, one in 31 and…for boys, it's one in 12 in California," Trump said.

The President insisted the trend was "artificially induced," adding: "You don't go from one in 20,000 to one in 10,000 and then you go to 12, you know, there's something artificial. They're taking something."

Trump's Blunt Tylenol Warning

The headline moment came when Trump zeroed in on acetaminophen, the common painkiller sold as Tylenol - known as paracetamol in Australia.

While Kennedy and Makary described a cautious process of label changes and physician advisories, Trump dispensed with nuance.

"Don't take Tylenol," Trump said flatly. "Don't take it unless it's absolutely necessary…fight like hell not to take it."

Kennedy laid out the evidence base, citing "clinical and laboratory studies that suggest a potential association between acetaminophen used during pregnancy and adverse neurodevelopmental outcomes, including later diagnosis for ADHD and autism."

Makary reinforced the point with references to the Boston Birth Cohort, the Nurses' Health Study, and a recent Harvard review, before adding: "To quote the dean of the Harvard School of Public Health, there is a causal relationship between prenatal acetaminophen use and neurodevelopmental disorders of ADHD and autism spectrum disorder. We cannot wait any longer."

But where the officials spoke of "lowest effective dose" and "shortest possible duration," Trump thundered over the top: "I just want to say it like it is, don't take Tylenol. Don't take it if you just can't. I mean, it says, fight like hell not to take it."

Vaccines Back on Center Stage

The President then pivoted to vaccines, reviving arguments that the medical establishment has long sought to bury. He blasted the practice of giving infants multiple injections at a single visit.

"They pump so much stuff into those beautiful little babies, it's a disgrace…you get a vat of 80 different vaccines, I guess, 80 different blends, and they pump it in," Trump said.

His solution was simple: "Go to the doctor four times instead of once, or five times instead of once…it can only help."

On the measles, mumps, and rubella shot, Trump insisted: "The MMR, I think should be taken separately…when you mix them, there could be a problem. So there's no downside in taking them separately."

The moment was astonishing - echoing arguments that had once seen doctors like Andrew Wakefield excommunicated from medical circles.

It was the kind of line of questioning the establishment had spent decades trying to banish from mainstream debate.

Hep B Vaccine under Attack

Trump dismissed the rationale for giving the hepatitis B vaccine at birth.

"Hepatitis B is sexually transmitted. There's no reason to give a baby that's just born hepatitis B [vaccine]. So I would say, wait till the baby is 12 years old," he said.

He made clear that he was "not a doctor," stressing that he was simply offering his personal opinion. But the move could also be interpreted as Trump choosing to take the heat himself, to shield Kennedy's HHS from what was sure to be an onslaught of criticism.

The timing was remarkable....