In recent months, she has appeared with the president to announce major projects, including some of his “most favored nation” deals with drug companies to lower prices to those of other developed countries and his recent vaccine order that sought to split the combined measles, mumps and rubella (MMR) vaccine into three separate immunizations — against the advice of medical groups.

At an Oval Office event to promote that order, she stood by Trump as he falsely suggested the number or timing of vaccines could play a role in rising rates of autism spectrum disorder. Scientific consensus and decades of studies have firmly concluded there is no link.

Overton has been critical of abortion pills and, if confirmed, would be positioned to roll back FDA rules that made them more accessible. U.S. abortion opponents have expressed frustration that the administration has not acted to stem the flow of such pills prescribed online, a situation they view as undermining state abortion bans.