Robert F. Kennedy Jr. has been anti-vaxx for many years. When COVID started he went full in on the "5G Bill Gates microchips!!!" stuff and the craziest of the craziest of COVID-related nonsense.

RFK Jr doesn't believe in any vaccine, often citing the debunked paper that links autism with vaccines. Yea not even vaccines for polio, mmr etc.

I tried to search for it, but can only find results about what a terrible human he is. I gave up trying to find his own words.