Health Secretary Robert F. Kennedy Jr. spread a confusing message about the measles vaccine during an interview on Fox News.

Kennedy Jr.’s speech disorder. “Hey everybody, I’m trying to figure out the right present to get Donald Trump for the inauguration,” he said with a shaky voice in the short clip ...

Conventional wisdom holds that a Robert F. Kennedy Jr. departure from the presidential race would be a gift to Donald Trump. Kennedy’s campaign is discussing dropping out and endorsing Trump for ...