Treasurer Chris Bowen has said the government will keep its pledge to return the budget to surplus by 2016-17. So that means it will have to make up the shortfall. This puts the government in the difficult position of needing to announce $6 billion worth of spending cuts or increased taxes in the weeks before the election.
So it's the government's predicament but it seems to have worried the opposition into thinking that this will also put pressure on it to similarly tighten its spending plans.
The opposition's response? Joe Hockey has declared that the Coalition will not recognise the Treasury and Finance statement, the PEFO. In other words, it is preparing to reject the statement from the only authorities that have possession of the facts. It is a rejection of the umpire's call. This is a startling reversal.
Two months ago, Hockey said: "We have always said that the only numbers we can actually rely on are the numbers released by the secretary of the Department of the Treasury and Finance, 10 days into the election campaign. Because they belong to the public servants rather than these numbers which belong to the government."
But now Hockey says: "We're not going to cop the Treasury being bullied by the government into producing PEFO numbers that are closely aligned to the government's".
This is not credible. It looks very much like the Coalition preparing the way for it to reject the official numbers so it can keep flexibility in its policy or, worse, make it up as it goes along. Hockey wants the government to respect a stricture that he himself will not.