“There are ​some groups that have virtually no problem with autism,” Trump said. The order also recommends splitting the measles, mumps and rubella vaccine into three shots taken at separate visits. Kennedy in January ​cut the U.S. immunization schedule to remove shots against six out of 17 diseases, a move halted by a federal court ruling. Existing coverage under ​the Vaccines for Children program relied on by many families will continue, a senior administration official said. The order directs the Justice Department to challenge state vaccination laws, escalating a federal fight over school immunization requirements set by states.