What to know about Dr. Heidi Overton, Trump's pick to lead the FDA

President Trump has tapped one of his top White House health policy aides, Dr. Heidi Overton, to lead the Food and Drug Administration. Overton has been a strong supporter of the president's health agenda, including efforts to overhaul the childhood vaccine schedule, changes that have drawn sharp criticism from medical experts. Geoff Bennett discussed more with Lauren Gardner of Politico. PBS News…