LABOUR could be wiped out as a political party if it replaces Jeremy Corbyn with another unpopular leftie boss, Tony Blair warned today.
The ex-PM, who won three elections for Labour, said his old party has become "comical" and a "cult" - but finally admitted defeat on Brexit.
He spoke out after Mr Corbyn said he would quit as leader following the disastrous election result last week where it lost 59 seats.
The race for his successor has already started, but Mr Corbyn is expected to stay in post until at least March while a new leader is found.
In a speech this morning in London Mr Blair said the party faces electoral obliteration unless it changes course now, as it is stuck "marooned on fantasy island".
He ripped into his successor for turning the party into a "glorified protest movement" and admitted the terrible election loss was a source of "shame" for him.
"It was a Brexit general election which was why it was a cardinal error for Labour MP to agree to it," he said.
Remainer Mr Blair, who has been rallying for a second referendum for years, finally admitted defeat and admitted that Brexit would go ahead.
He added: "Now that Brexit will happen. We must make the best of it, and the country must come together."
And he warned them that Labour would be "replaced" as a serious political force if it tries to "whitewash" the scale of its defeat and brush it under the carpet.
Mr Blair, whose old seat Sedgefield went blue last week, will say the defeat "marks a moment in history" and demands a full scale examination of why it lost so badly.
"This election was no ordinary defeat for Labour," he said.
"We pursued a path of almost comic indecision, alienated both sides of the debate, leaving our voters without guidance or leadership.
Any attempt to whitewash this defeat, pretend it is something other than it is, or the consequence of something other than the obvious, will cause irreparable damage to our relationship with the electorate.
Tony Blair
"So, at one level, sure let's have a period of 'reflection'; but any attempt to whitewash this defeat, pretend it is something other than it is, or the consequence of something other than the obvious, will cause irreparable damage to our relationship with the electorate."
He said that 2019's defeat is "much worse than 1983" as it was the party's fourth in a row.
"The choice is now," he said.
"The takeover of the Labour Party by the far left turned it into a glorified protest movement with cult trimmings, utterly incapable of being a credible government.
There are fears that the Labour party will try to replace Mr Corbyn as the boss but keep their hard-left ideologies and policies - ignoring the huge scale of their defeat and unpopularity.
Mr Corbyn has been quick to blame the media and Brexit for the loss - not himself directly.
Meanwhile, Labour's Yvette Cooper has said she will consider over Christmas whether to run for the leadership herself.
She joins other colleagues including Rebecca Long Bailey and Jess Phillips who are expected to run.
She told Radio 4 today: "People felt let down. We have to show some humility.
"Older voters think we aren't listening to them.
"We have a very long road to travel to earn back voters."
Lisa Nandy, who has said she is thinking about standing too, told Sky News this morning she will be banging on doors speaking to voters about what they think Labour should do to win them back.
"There is a balance between humility, listening and learning," she said.
"The people who came up to me in Wigan and said we were really annoyed about backing a second referendum - they knew what was going on.
"We'd stopped listening to one half of the population."
Shadow Brexit Secretary Sir Keir Starmer also set out his stall today - urging the party not to lurch to the right after their defeat.
He wanted the party to return to being a "broad church" but said there was no hiding from the "devastating result".
"The case for a bold and radical Labour government is as strong now as it was last Thursday,"
"We need to anchor ourselves in that.
"We didn’t deal with antisemitism and that became a question of values and a question of competence."
Mr Starmer also denied he was too middle class to be leader because his "dad worked in a factory".
Last night furious MPs slammed the leftie boss at a showdown meeting, over his poor leadership and economically illiterate policies.
Fuming politicians told him he was the "biggest drag" on their election.
Seething backbenchers queued up to tear into the party boss for leading them to the worst election defeat since 1935 at a parliamentary showdown.
Labour MP Rachel Reeves said: “I said to Jeremy, you can make all the excuses in the world about Brexit, about the mainstream media, about people not voting."
She said Labour needs “radical change” adding: “We need a party leader that the country can trust.”
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In a devastating blow to the Labour leader, one MP read out the name of all the once rock-solid Labour seats they lost to the Tories in the North-East.
Confronting his defeated party for the first time since the election, Mr Corbyn issued a grovelling apology telling them: “I am very sorry for the result for which I take responsibility.”
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