Autism Spectrum Disorder (ASD) has emerged as a key battleground in the federal assault on science. US government leaders have systematically ignored expert advice, reanimated baseless claims about the causal role of vaccines, forwarded thinly supported hypotheses blaming ASD on parental behavior, and promoted unsubstantiated treatments. This barrage comes at a time when the prospects for dramatic near-term advances in clinical translation, particularly for the severe end of the ASD spectrum, have never been greater.

