Trump signs executive order on childhood vaccines

I want to bring in Monica Alba, our White House correspondent, who's been monitoring it all. And let's start with the news of the executive order itself. Monica, because it's significant, basically overhauling the federal recommendations, the guidelines now for childhood vaccine schedules.And this is something that the president has really been previewing since almost his first day in the second term. >> Exactly, Hie. This is something that the president has also tried to take action on before.There have be ...