"Alistair Darling will use the pre-election Budget to insist that Labour can halve Britain's £178 billion deficit without any new tax rises.
"The Chancellor will use his statement later this month to say that he has no need to raise extra cash to meet his central economic pledge. Mr Darling has already announced £19 billion of tax rises to come in this year and next, including a new 50p rate of income tax and national insurance rises for workers and employers.
"Liam Byrne, his deputy, said yesterday that there was no need for more. No, we have set out exactly how we will find that £19 billion, he told Andrew Neil on the BBC Two Daily Politics programme."