This sketch practically wrote itself. Alec Baldwin nailed his Donald Trump impression when he made his debut as the Republican presidential nominee on Saturday Night Live's season premiere on Saturday, October 1.

The 30 Rock alum, who has hosted the NBC comedy institution 16 times, took on Kate McKinnon as Hillary Clinton for the show's cold open, which spoofed Monday's first presidential debate.

"I am going to be so good tonight," Baldwin as Trump said at his podium. "I am going to be so calm and so presidential that all of you watching are going to cream your jeans."

And then he proceeded to mimic every Trump tic. From his pronunciation of "China" to his exaggerated hand gestures to his trout pout.

After claiming he had a mic-drop moment two minutes into the debate, Trump began to leave the stage but was told by NBC News anchor Lester Holt (played by Michael Che) that he still had 88 minutes to go.

"My microphone is broken," Trump immediately complained, claiming that Clinton and President Barack Obama were to blame because they took it to Kenya. And then he began to sniff, and sniff, and sniff again, before pretending to test the sound by uttering the words "Huge China."

Asked what she thought about that, Clinton responded, "I think I'm going to be president. I mean this man is clearly unfit to be commander in chief."

"Wrong," Trump chimed in.

"He is a bully," she continued.

"Shut up," the former reality star parried.

"He started the birther movement," Clinton added.

"You did," he fired back.

She then raised the issue of Trump not releasing his taxes, before Holt moved things on by pointing out that Trump had supported the Iraq war.

"Wrong, wrong, wrong. You're being very mean to me tonight, Coltraine," Trump said, throwing in a reference to the news anchor's love of jazz, before launching into an anecdote about telling Fox News' Sean Hannity that he was against the war before they ended up in a kiss.

Then Trump said that he was better suited to the Oval Office because he had the best judgment and the best temperament.

"She's the one with the bad temperament," he insisted. "She's always screaming, she's constantly lying, her hair is crazy, her face is completely orange, except around the eyes, where it's white. And when she stops talking her mouth looks like a tiny, little butthole."

Watch the whole sketch above, especially to see Emmy winner McKinnon's hilarious responses, including the much-memed shimmy and Trump's closing argument, which touches on the real estate mogul's fondness for 3 a.m. tweets.

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