How the OBR produces forecasts

The Office for Budget Responsibility has attracted huge criticism, and anger from Chancellor Rachel Reeves, after mistakenly revealing the details of her budget hours before she delivered it. But the watchdog already had its critics. 

Liz Truss says she never realised how powerful the OBR was and that it should be abolished. And Sir Keir Starmer has criticised the OBR's assessment of his government's fiscal plans. 

So how will the budget leak affect the OBR's future? Niall talks to Ed Conway, Sky's economics and data editor about exactly what the OBR is, whether it has too much power and if it will survive. 

Producer: Emma Rae Woodhouse 

Editor: Wendy Parker