Bill MaherhadRobert F. Kennedy Jr.his onClub Randompodcast to discuss the White House hopefulscontroversialstance on vaccines.

Have a look and listen below, and judge for yourself.

In the clip, Democrat Kennedy cites a book he wrote that summarizes over 450 studies.

Bill Maher Robert F Kennedy Jr talk vaccines

Bill Maher, left, and Robert F Kennedy JrHBO; Getty Images

The host shot back: Thats a ridiculous assumption.

Of course youre going tohaveto talk about it.

RFK Jr. interrupted again, saying, Well, if somebody asks me, Im going to.

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This isalltheyre going to ask you about.

you should probably do it Anthony Fauci said said eight years for a vaccine.

you gotta watch them for a while.

The only medicine that never gets tested are vaccines.

And that is what I object to.

… All Im saying is, lets test them the way we test other medicines.

That does not seem unreasonable.

Maher agrees, saying, That is not unreasonable.

Thats my position, Kennedy says as the clip ends.

This is a Holocaust, what this is doing to our country.

Kennedy later apologized for the comparison.

His sister Kerry Kennedytweetedin response then: Bobbys lies and fear-mongering yesterday were both sickening and destructive.

I strongly condemn him for his hateful rhetoric.

… We stand behind him in his ongoing fight to protect our environment.

However, on vaccines he is wrong.

First, it was the measles/mumps/rubella vaccine that caused that caused autism.

… Then it was the thimerosal preservative in vaccines.

Then it was spacing vaccines too close together.

Then it was aluminum vaccines.

Then it was the HPV vaccine he said caused infertility or autoimmunity.

Then, vaccines caused something called chronic illness.

So youre always playing this kind of game of whack-a-mole.

You knock something down and it pops up.

Were moving the goal posts.

Rogan later challenged Hotez to come on his show and debate Kennedy.

Speaking of which, vaccinesdoget tested.

The polio vaccine field trials of 1954 were among the largest and most publicized clinical trials ever undertaken.

The results, showed that Jonas Salks killed-virus preparation was 80%-90% effective in preventing polio.

Those vaccines were applied for decades, virtually eradicating the scourge of the crippling disease.