SUELLA Braverman today warned the Tories face “electoral oblivion” within months unless Rishi Sunak grips illegal migration.
In a dramatic Commons statement, the former Home Secretary railed against the arrivals “pouring into our country” on small boats.
She demanded the imminent Rwanda legislation ignore European Court and Human Rights Act rules to get flights going without delay.
The scorned ex-Cabinet Minister said: "All of this comes down to a simple question: who governs Britain?"
Her strident intervention risks corralling right-wing Tory MPs to rebel if the government’s highly-anticipated Rwanda law is softer than they would like.
Ms Braverman was fired and replaced by James Cleverly after a rogue article taking aim at the Met's policing of pro-Palestine protests.
Following that sacking she launched an excoriating attack on the PM's authority and "weak" leadership.
In a rare personal statement to the Commons this afternoon, she put him on notice to fix migration or cost the Tories the election.
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She said: "I want to talk about the crisis on which I spent more time in office working on than any other: mass, uncontrolled, illegal migration.
"We are all familiar with the problem. Tens of thousands of mostly young men – many with values and social mores at odds with our own – pouring into our country day after day, month after month, year after year.
"Many come from safe countries. Many are not genuine refugees but economic migrants. All pay a criminal gang thousands of pounds to break into Britain.
"And all of them depart from a safe country: France - who, let’s face it, should be doing so much more to stop them.
"This is putting unsustainable pressure on public finances and public services, undermining community cohesion, and jeopardising national security and public safety."
Ms Braverman took aim at the "insanities" she saw while in the Home Office - including claiming foreign terrorists could not be deported due to human rights laws.
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And she urged the government to erect "Nightingale-style detention facilities" to house small boat arrivals.
While her speech will be seen as leadership jockeying, Ms Braverman insisted the PM will have her support if he cracks the crisis.
But she warned: "It is now or never. The Conservative Party faces electoral oblivion in a matter of months if we introduce yet another Bill destined to fail."
Personal statements from the Commons are rare and usually only allowed following the departure of a senior Cabinet member.
Geoffrey Howe famously accelerated Margaret Thatcher's downfall with his memorable resignation speech in 1990.
Ms Braverman put the PM on notice ahead of the government’s highly-anticipated Rwanda legislation.
Mr Sunak is considering plans to overrule European Convention of Human Rights rules that threaten removal flights taking over.
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It came as Home Secretary James Cleverly flew to Kigali to seal a new treaty that addresses the concerns raised by the Supreme Court.