President Donald Trump on Monday signed an executive order that directs a reevaluation of the childhood vaccine schedule and falsely links vaccines to autism, according to reports. The order recommends splitting the measles, mumps and rubella (MMR) vaccine into three separate shots given at different visits and seeks to improve vaccine research. It builds on the administration’s efforts to reshape the childhood shot schedule under Health and Human Services Secretary Robert F. Kennedy Jr., a longtime vaccine skeptic. The move marks a return to controversial vaccine policy after the administration had recently avoided public discussion of the issue because of concern about political repercussions. The order calls for fewer childhood vaccines overall, though specifics of implementation were not detailed.