Unions, politicians and many rail passengers are calling on the Government to delay the signing of a new franchise for the West Coast Main Line.
Virgin Trains is due to lose the service, which passes through South West Scotland and Cumbria, after First Group made a higher bid.
Labour wants the issue debated in Parliament. 140,000 people have signed a petition opposing the move.
First Group says its bid is deliverable and provides the best deal for taxpayers. It says it was selected in a fair, rigorous process that scrutinised best value and deliverability. It adds that it will be introducing major service improvements, new trains and will cut standard fares.
More top news
A look ahead at the forecast for the Border region.
His father, Secretary of State for Scotland David Mundell, is one of the highest profile Remain supporters north of the border.
The company that owns a Cumbrian nursing home has been fined £400,000 after a 91-year-old woman died after falling from her bed.