and you knew it was all lies,

a smart person would ignore the bull(bleep)

and carry on with his life.

But Donald Trump is not that person.

REPORTER: Yesterday morning, Mr. Trump fired back

at questions about his mental fitness with this tweet.

(reading):

This is, like, really funny.

Only Donald Trump could defend himself and,

in the same sentence, completely undermine his whole point.

You know, it would be like someone saying,

"I'm the most tolerant guy out there--

just ask this filthy Armenian."

And then, and then he goes on to say that not only is he,

like, really smart-- he's also a genius.

And not just any genius-- no, no, no-- a stable genius,

which, I guess, is Einstein if he owned a comb, I think?

But, still, like, do you know how delusionally confident

and un-self-aware you have to be

to go on Twitter and declare yourself a stable genius?

That's the ultimate challenge.

It's like a drunk driver getting pulled over by the cops,

and the cop's like, "Sir, can you step out of the car?"

And the drunk driver's like, "Oh, I'll step out of this car.

"I'll step out, and I'll step out straight.

"You watch me, man. You better get that Snapchat ready.

"I'm gonna moonwalk your line, man.

"Call all your other cop friends!

"I'm a sober genius!

I love ya. I'm gonna throw up now."

Now, look, whe-whether or not you agree with Trump

on being a genius,

he has added himself to the illustrious group of people

who have declared themselves extremely smart.

This summer, I did the minority executive training program

at Yale. You guys, I'm, like, really smart now.

I'm smart-- you're dumb.

I can handle things! I'm smart!

Not like everybody says!

I am so smart! I am so smart!

S-M-R-T...

I mean S-M-A-R-T!

Yeah, and, by the way, Homer is now 20 points up in the polls.

"Stable genius." Really?

Although, I guess, in a way, Trump is stable.

I mean, look at his life: Twitter, golf,

bedtime, cheeseburger, yum, yum, yum, yum,

fall asleep, do it again. Yeah.

He's the only thing that hasn't changed

since he became president.

If anything, Trump is stable,

and he's made everyone else unstable.

Like, even Kim Jong-un. Think about it.

Before Trump, he was the nut bag autocrat

running around with the general

saying he was gonna blow up the world.

Then Trump shows up, and Kim is suddenly in a suit like,

"I've got to try to be a better person. I, uh..."

-(laughter) -"Hey, South Korea, you guys want to talk?

You guys want to talk?"

But, look, the truth is,

no one wants to be told that they're losing their mind.

So I can see why it ruined Trump's Camp David sleepover

with his GOP BFFs.

Speaking to reporters at Camp David where he was meeting

with Republican congressional leaders this weekend,

President Trump lashed out at critics

and offered a full-scale defense of his own credentials.

I consider it a work of fiction, and I think it's a disgrace

that somebody's able to, uh, have something,

do something like that...

"Is able to have something, do-do something, like...

"What-what was I talking about?

-Oh, yeah, the book, the book." -(laughter)

He can't even maintain his train of thought,

or maybe he just got thrown off his game

because of casual Mitch over here.

-What are you wearing, Mitch McConnell?! -(laughter)

What the hell is that?!

Yo, for real, someone needed to filibuster those jeans, man!

-(laughter) -And he knows it.

You can see in his eyes, he's going,

"I'm not pulling this off.

I'm not... I'm not pulling this off at all."

(laughter)

Now, look, of course, Trump was always gonna come out

and tell us that he has a very good brain.

What was fun was watching the grownups around him pretend

that they don't see what's blatantly obvious.

President Trump is completely capable.

I don't think he's crazy.

No one questions the stability of the president.

MAN: Well, they...

I've never questioned his mental fitness.

I have no reason to question his mental fitness.

"Why would I question it?

I already know what the answer is."

(laughter)

You know, to be honest with you,

if I hadn't had a year to get used to this,

I'd be really pissed off right now,

because these people aren't just saying

that Donald Trump is of sound mind.

They're basically saying that all of us are mentally unstable

for questioning him.

But the truth is, we all knew this about Donald Trump.

We all knew that he was crazy.

In fact, they said this about Trump.

I think he's a kook.

I think he's crazy.

I think he's unfit for office.

"But now that he's won, he's our crazy,

so he's not crazy, so you're crazy."

-(goofy sputtering) -(laughter)

Look, I guess what the Republicans are saying is this.

Yes, Donald Trump was a deranged lunatic unfit to be president,

but once he won the electoral college,

then he became a stable genius, because everyone knows

nothing turns a man sane like absolute power.