Campaigners have handed in a 23,000-name petition to the government demanding the East Coast Main Line be kept public.
They claim it does not make financial sense to hand a profitable service over to a private firm.
Lilian Greenwood, MP for Nottingham South and shadow Rail Minister, told ITV News Central she hopes the government will listen to what passengers have to say.
Calls are being made for East Coast Main Line trains to remain in public ownership.
The service, which runs through Stevenage and Peterborough, has reported a return of more than £200 million since it was re-nationalised when the previous private operator handed back the franchise.
Green Party politicians are planning to hand in a petition containing 23,000 signatures calling for the service not to be franchised back to the private sector