The country’s largest group of pediatricians is pushing back against a new vaccine schedule for children. The president’s executive order instructs the Department of Justice to challenge state rules that the White House believes are in conflict. “Today’s executive order is not based on ‘gold-standard science.’ Today’s executive order will do nothing to support families of children with autism or advance understanding of the condition. READ MORE:Pediatricians push back against president’s new vaccine orderCHECK OUT WBAL:Get all the latest Baltimore news, weather and sports.