Ed Balls talking balls

The BBC report that (my emphasis)

"Mr Balls said Labour needed to show "determination and steel and unity" and said the next general election was not lost.

Previous prime ministers Tony Blair, John Major and Margaret Thatcher had been behind in the polls in 2004, 1991 and 1986 and had managed to win general elections in the following years, he added.

"They stuck to their nerve and stuck to the long term and came back to win and we can do the same," said Mr Balls, who added that Labour needed to "take the gloves off and take the fight to the Conservatives".

He also said there was no reason why the UK economy could not bounce back over the next 18 months."

I can think of a couple of reasons why not, can you?