Why did President Trump feel the need to champion the Tylenol/autism issue, and why now?

While the White House issues a warning about a link between Tylenol and autism, the WHO (World Health Organization) rejects the claim, saying research has found no consistent association, and urges pregnant women to follow their doctors' advice. Jeremy Nighohossian, Senior Fellow & Economist at the Competitive Enterprise Institute (CEI), says, "Don’t take health and medication advice from politicians. If you're pregnant or the parent of a young child, discuss medications with your physician. Doctors are best positioned to weigh trade-offs and risks, in consultation with patients and parents." Jeremy Nighohossian joins Newell to further reiterate his comments.