While anti-vaccine and vaccine skeptic voices applauded Trump’s order, public health experts said the directive will prove deadly. "Under the draft executive order, mandatory vaccine requirements for children to attend school would be also put at further risk. Physicians serving in Congress from both parties also decried Trump's order. This executive order is wrong. "Parents should listen to their child’s pediatrician about vaccines rather than listening to an inaccurate executive order," Cassidy added.