PUBLISHED: 08:25, Sun, Sep 20, 2020 | UPDATED: 09:11, Sun, Sep 20, 2020
A video of Mr Miliband, the Labour Party's shadow business secretary, accusing Mr Johnson of seeking to "get Brexit undone" in the House of Commons has gone viral. His energy was largely targeted during discussions surrounding the controversial UK Internal Market Bill. The former Labour leader warned MPs that passing the legislation would "equip the government with the power to break the law" and was a matter of "right versus wrong" rather than "Leave versus Remain".
The segment being shared on social media is not the full 25-minute-long video, but a clip which focuses on Mr Miliband's direct attack on the prime minister sitting just a few feet away.
Mr Miliband has in recent months taken a more central role in Labour, after having lost the 2015 election to Conservative Party and David Cameron, shortly then resigning to the backbenches under Jeremy Corbyn.
Mr Miliband largely supported Mr Corbyn in his leadership endeavours and has previously said that many of Mr Corbyn's policies were similar to his own.
But, he found himself at loggerheads with Labour's former spin doctor and mastermind behind the New Labour movement, Alastair Campbell, during a 2018 GQ interview.
Labour Party: Ed Miliband and Alastair Campbell were entangled in a bitter exchange over the party (Image: GETTY)
Ed Miliband: The shadow business secretary gave an impassioned speech against the PM this week (Image: Youtube/UK Parliament)
Mr Campbell was publicly averse to Mr Corbyn, and was famously expelled from the party after admitting he voted for the Liberal Democrats in the 2019 European Parliament election live on TV.
Mr Miliband and Mr Campbell disagreed on how well oiled Mr Corbyn's machine was, as Mr Miliband said: "This is why I give some credit to Jeremy Corbyn.
"I think this is a moment when people want big answers, bolder answers, to the problems that exist.
"I always felt this while I was leader - I felt that my analysis was big, but are the answers enough?"
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Jeremy Corbyn: Miliband supported Corbyn during his time as Labour leader (Image: GETTY)
Mr Campbell replied: "Yes but, what is the boldness? I don't sense a boldness in what the Labour Party are doing.
"I sense a regression and going back to some old-fashioned things," here Mr Miliband interjected and began to list several modern policies Mr Corbyn had proposed including abolishing university tuition fees.
Mr Campbell said: "Ok, there's lots of things in that manifesto that people