Harlan Hill in a 2016 appearance on Fox News.

A Trump campaign advisor who promised to eat his shoe if Joe Biden won the election is now refusing to do so, making the false claim that former President Donald Trump won instead.

Harlan Hill, a political consultant and commentator, made the bold promise to The Atlantic at Steve Bannon's election-night party on November 7, 2020.

He said he was "one hundred percent" certain of Trump's victory and, when asked what he would do if Trump lost, he told the outlet: "I'll eat my shoe. We'll do it in a livestream."

Following Biden's inauguration, Mediaite followed up on Hill's plans.

But Hill told Mediaite, falsely: "Trump won."

Hill has held this position for a while. Following the election, he issued a string of tweets falsely suggesting that Biden's win was rigged by the Democratic Party.

"Democratic mob bosses have stolen an election and undermined the democratic process," he tweeted on December 2.

"Trump was robbed," read a December 15 tweet.

Since Election Day, Trump and his allies have filed dozens of lawsuits in several states contesting their 2020 election results, citing widespread election fraud. So far, they have won none of those cases.

Hill was formerly a regular commentator on Fox News, but was dumped by the channel in October after he referred to Vice President Kamala Harris as an "insufferable lying b----."

He did not immediately respond to Insider's request for comment. 

In 2017, a British commentator and academic made good on a similar promise after his own election prediction proved wrong.

Matthew Goodwin, a political academic, promised to eat his book if then-Labour leader Jeremy Corbyn polled more than 38% in that year's general election.

Corbyn lost the election, but polled at 40% and snatched 29 seats from the ruling Conservative Party, which came as a surprise to many pundits, including Goodwin.

Unlike Hill, Goodwin followed through on his promise when challenged, tearing out and chewing on pages of "Brexit: Why Britain Chose to Leave the European Union" on live television.

Political academic Matthew Goodwin eating a page from his book in 2017.

"I was surprised that Jeremy Corbyn ... got two percentage points more than I had expected, and I did say that I would eat this book," he told Sky News at the time.

"I am a man of my word, so what I'm going to do is just sit here and eat my book while you guys carry on."

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