Hillary Clinton was spotted looking rather glum as she arrived at her holiday party in New York, while once-beaming millionaire donors like Anna Wintour dodged cameras.

A downcast Clinton arrived at New York's famed Plaza Hotel on Thursday night and was pictured sitting in the back of a black car as it was directed into the hotel's loading dock garage.

Vogue editor Anna Wintour hid her face behind a male friend as she walked through the hotel and made her way into the party.

It is in stark contrast to the beaming attitudes they had during the recent election campaign before Clinton was beaten by Republican Donald Trump.

Clinton gave a speech at one point during the evening, where she was joined on the stage by her husband Bill, daughter Clinton and son-in-law Marc Mezvinsky, running mate Tim Kaine and John Podesta.

It is unclear if Huma Abedin attended the event.

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She was joined on stage by her husband Bill, daughter Clinton and son-in-law Marc Mezvinsky, running mate Tim Kaine and John Podesta

Justin Belmont, one of the guests at the event, snapped a photo of himself with former president Bill Clinton

Hillary Clinton was spotted looking glum as she arrived at New York's Plaza Hotel to host her holiday party on Thursday for the deep-pocketed donors who helped fund her campaign

Vogue editor Anna Wintour hid her face behind a male friend as she walked through the hotel and made her way into the party

As recently as October, Wintour was pictured smiling as she arrived at a Hillary Victory Fund concert in New York wearing a Clinton supporter t-shirt.

Clinton planned the costly party to thank those donors who doled out millions to the Democrat's presidential campaign.

Among the other guests expected to attend were Hollywood producer Harvey Weinstein, designer Tory Burch, investor Alan Patricof and billionaire hedge-fund manager Marc Lasry.

They not only donated to Clinton's campaign but also hosted fundraising events.

Wintour also used her position to have Vogue formally endorse Clinton for president.

The costly holiday party was expected to be held in the hotel's 4,800 square foot Grand Ballroom.

Clinton beamed as she attended a fundraiser for her hosted by Hollywood director Harvey Weinstein in June in New York

Vogue editor Anna Wintour wore a Hillary Clinton t-shirt as she attended a Hillary Victory Fund concert in New York in October (left). She dodged photographers on Thursday (right)

Clinton arrived at the Plaza on Thursday night and was pictured sitting in the back of a black car as it was directed into the hotel's loading dock garage

Clinton's cars drove into the loading dock garage of the Plaza Hotel on Thursday night

Clinton arrived at the famed Plaza Hotel on Thursday night in a black vehicle

Meanwhile, President-elect Donald Trump continued his 'thank you' tour on Thursday night in Hershey, Pennsylvania.

He went after White House press secretary Josh Earnest – who has been pounding on Trump from the White House podium over Russian interference in the U.S. elections.

'This foolish guy, Josh Earnest, I don't know,' Trump said, calling out President Obama's chief spokesman by name.

'You know, having the right press secretary is so important because he's so bad the way he delivers a message. He can deliver a positive message and it sounds bad.'

'He could say ladies and gentlemen, today we have totally defeated ISIS, and it wouldn't sound good, OK?' Trump quipped.

They, he added without explanation: 'Maybe he is getting his orders from somebody else?'

The costly holiday party was being held at New York's famed Plaza Hotel

The gathering took place at the hotel's Grand Ballroom (above), where events cost well over $100,000 on average

Hollywood producer Harvey Weinstein and Vogue editor Anna Wintour (pictured) were among the guests invited to Clinton's holiday party

Wintour used her position to have Vogue formally endorse Clinton for president (above watching Clinton speak with Bryan Lourd at a May fundraiser in LA)

Trump has been much softer on Obama, with whom he has been consulting by phone, during his rallies, praising the outgoing president for how he has been handling the transition.

Earnest turned up the heat on Trump and his transition over Russian interference following media reports citing CIA sources that the purpose of Russian-backed hacking was to help Trump.

'It is just a fact – you all have it on tape – that the Republican nominee for president was encouraging Russia to hack his opponent, because he believed that would help his campaign.'

'It is not a controversial statement,' Earnest continued. 'I'm not trying to be argumentative. But I am trying to acknowledge a basic fact,' Earnest said at Thursday's White House briefing.

President-elect Donald Trump continued his 'thank you' tour on Thursday night in Hershey, Pennsylvania

He went after White House press secretary Josh Earnest – who has been pounding on Trump from the White House podium over Russian interference in the U.S. elections

US President-elect Donald Trump was introduced to speak to supporters at the Giant Center in Hershey, Pennsylvania on Thursday

Trump had been scheduled to hold a press conference on Thursday about how he would deal with his business empire while in office, but his transition postponed it until January.

As he has at previous post-election rally, Trump has gone after flag burning and terrorism.

'I see these punks burning the flag, stomping on it... No good,' he said. 'We're going to maybe have to do something about that.'

'We will keep radical Islamic terrorists the hell out of our country,' Trump said at another point.

Then he complained that 'Our infrastructure is going to hell,' although he sent off the crowd with a seasonal greeting: 'Merry Christmas.'