BORIS Johnson has vowed to end the dithering over HS2 and come to a high-speed decision over the rail lines future.
The PM will hold an emergency summit this week to find a way to get its spiralling budget back on track.
Boris Johnson vowed to end HS2 dithering and reach decision over rail lines future
HS2 looks likely to cost a whopping 106billion and Tories are split on whether to scrap the 250mph line
He has called in Chancellor Sajid Javid and Transport Secretary Grant Shapps for a three-way brain-stormer, telling them: Lets get this settled.
Downing Street fear the row over HS2 risks becoming as divisive for the Government as the Brexit crisis.
Tories are split on whether to scrap the 250mph line linking London to Birmingham and the North amid claims the rocketing bill will hit 106billion.
But 80 MPs are demanding a meeting with the PM to seek assurances the flagship network will go ahead.
Former minister Andrew Mitchell said: Its very clear that our economic future and well-being are inextricably linked with HS2.
And new MPs who helped Mr Johnson to election victory by storming the red wall of Labour seats say the project is vital to open up the North.
They have formed a new HS2 support group to take on Nimby colleagues in the Home Counties who want it stopped.
Tory Robert Largan, who won High Peak from Labour, said: Boris Johnson has said he wants to be a big infrastructure PM who invests in the North.
Northern voters who backed us at the election are crying out for this sort of investment.
Mr Johnson and the two ministers he will meet at the end of the week are broadly in favour of going full steam ahead.
But a source said: Before they proceed, they will want assurances it wont go from 106billion to 130billion, 180billion or 200billion.
The Chancellor will be pivotal in swinging the final decision and former Chancellor George Osborne has urged him to find the cash, saying: We cant claim to be the party of the North and cancel the new North-South railway line.
The Mayors of the West Midlands and Manchester Andy Street and Andy Burnham also insist it must go ahead.
The Chancellor Sajid Javid will be pivotal in swinging the final decision
Transport Secretary Grant Shapps is due to meet with the PM and Chancellor for a three-way brain-stormer on the future of HS2