Guys, I just witnessed a total mental breakdown in public.

Robert De Niro appeared outside the Trump trial Tuesday morning, trotted up with a CLOTH MASK on ...

... and then pleaded with America for 9 minutes to pretty please vote for Biden or the country is over!

You can watch the full video here, or I'll give you the highlights below:

[Language warning]

That. Was. Something.

These clips are amazing. There's people yelling "F Joe Biden" and Robert De Niro is scandalized.

This is really, even these people over here, is kinda ... it's kinda crazy. It's really crazy. And this thing ... Donald Trump has created this. He should be telling them not to do this, but he's just ... he, he -

That's really classless. Everyone knows that yelling the F-word about a President isn't for the streets. It's for the Tony Awards, right Bobby?

Then we got the "if he gets in, he'll never leave." Of course.

Oh yes, Trump will become "dictator for life!"

Then he started calling Trump a loser after he gets flustered by a car alarm going off 😂

This was embarrassing. Even for Hollywood.

We all know the best way to campaign for your candidate is to call everyone who disagrees with you a clown, right?

I guess it's better than "basket of deplorables"?

Everyone loves a clown.

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