President Donald Trump is set to sign an executive order that would significantly alter the federal guidance for childhood vaccines and call for states to reconsider their guidance for vaccine requirements for school, The Washington Post reported. Trump and Health and Human Services Secretary Robert F. Kennedy Jr. have long pushed the theory that vaccines–particularly the meales, mumps and rubella vaccine–is liked to autism spectrum disorder. This comes despite the fact that multiple studies have debunked the supposed link between childhood vaccinations and children developing autism spectrum disorder. Andrew Wakefield, the physician who published the original study, later had his medical license revoked and The Lancet retracted the study. The executive order, entitled “Gold Standard Childhood Vaccine Recommendations,” would divide childhood vaccinations into three distinct categories: immunizations recommended for all children such as the MMR vaccine, diptheria, tetanus and polio; vaccines for high-risk groups or populations like hepatitis A and hepatitis B vaccines; and vaccines based on shared clinical decisionmaking such as the Covid-19 vaccine and the flu shot. In addition, the executive order recommends that the MMR vaccine be broken up into three separate single shots. The order also advises states to review the recommendations and “consider updating relevant laws and regulations that define” immunization requirements. Trump has for years, going back to his 2016 run for president, suggested that vaccines should be administered in smaller doses.