The New Hampshire senator's son, who lives with severe cerebral palsy, inspired her viral moment in Thursday's hearing for President Trump's nominee for health secretary.

The New Hampshire Democrat described raising a son with severe cerebral palsy and ripped Kennedy for "relitigating" settled science on autism.

For Sen. Maggie Hassan, the falsehoods that have been spread about any link between vaccines and autism are beyond the pale—and hit close to home. The Democratic senator from New Hampshire on Thursday confronted one of the most influential disseminators of this conspiracy theory,