Kennedy has a rare disorder called spasmodic dysphonia — a spasm of the vocal muscles ... activist RFK Jr. is the descendent of the late U.S. President John F. Kennedy and son of Senator ...

he believes is a vaccine injury.' Kennedy, 71, suffers from a condition that causes the muscles in the voice box to involuntary spasm, leading to a croaky, strained and shaky voice. There is no ...

and her son, Jack Schlossberg, were on the Today show when Savannah Guthrie asked about criticism from members of the family directed at RFK Jr., who launched his presidential campaign in April.