Alec Baldwin has revived his much-lauded Donald Trump impression for a new Saturday Night Live sketch, portraying the President-elect as overwhelmed, panicky and unpredictable.

Kate McKinnon swaps out her Hillary Clinton impersonation to play Trump's campaign manager Kellyanne Conway, showing her to be struggling with the reality of Trump becoming president.

"I wouldn't be president without you," Baldwin's Trump admits, leading McKinnon's Conway to reply in a wavering voice, "I think about that everyday".

Later in the sketch, when Baldwin's Trump asks McKinnon's Conway what she needs, she deadpans: "A time machine".

The clip sees Baldwin's Trump prepare for office by trying to find out what ISIS is using Google and Siri, gauging the public reaction to his cabinet appointments and flip-flopping on many of his campaign promises, including deporting illegal immigrants, scrapping Obamacare and prosecuting Hillary Clinton.

We need your consent to load this YouTube contentWe use YouTube to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences

The sketch also poked fun at Vice President-elect Mike Pence's experience at the Broadway musical Hamilton, with Beck Bennett's Pence saying "It was good. I got a free lecture."

Baldwin's Trump finishes the conversation by asking Bennett's Pence pleadingly, "You're going to do everything, right?"

It looks like the latest sketch hasn't changed Donald Trump's opinion on Saturday Night Live, which he recently blasted as being "boring and unfunny", saying Baldwin's portrayal "stinks". The President-elect took to Twitter on Sunday to say the show is "totally one-sided".

Baldwin quickly fired back in a series of tweets from his Alec Baldwin Foundation account, saying Trump should be focusing on improving American's lives and improving American's reputation abroad.