Politicians have been told to get behind the high speed rail link or risk costs spiralling out of control.
The chairman of HS2, Sir David Higgins, has published his first report on the project since he took up the role at the beginning of the year.
He's warned the £50 billion cost of the project will escalate if it gets bogged down in parliamentary infighting.Sir David has recommended bringing forward construction of the West Midlands to Manchester stretch of the line from a start date of 2026.
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