Glenn remained close to the Kennedy family, and campaigned for Robert F. Kennedy during his 1968 presidential campaign. In 1968, Glenn was in Kennedy's hotel suite when Kennedy heard he had won California. Glenn was supposed to go with him to celebrate, but decided not to as there would be many people there. Kennedy went downstairs to make his victory speech and was assassinated. Glenn and Annie went with them to the hospital, and the next morning took Kennedy's children home to Virginia. Glenn was later a pallbearer at the funeral in New York.