Politics Anti-vaccine activist Robert F. Kennedy Jr. launches presidential campaign Anti-vaccine activist Robert F. Kennedy Jr. launched his longshot bid to challenge President Joe Biden for the Democratic nomination next year. AP Photo/Josh Reynolds BOSTON (AP) — Anti-vaccine activist Robert F. Kennedy Jr. launched his longshot bid to challenge President Joe Biden for the Democratic nomination next year. Kennedy, a member of one of the country’s most famous political families who has in recent years been linked to some far-right figures, kicked off his campaign in Boston on Wednesday and likened his campaign to the American revolution. “My mission over...