"I think unfortunately that was a trophy I managed to secure last week." Labor's David Feeney left behind the briefing notes after a car crash interview with Sky's David Speers on Wednesday. Credit:Sky News A day after Scott Morrison's attempt to claim Labor had a $67 billion budget black hole backfired spectacularly on the Treasurer, temporarily blunting the government's political attack over economic management and costings, Mr Feeney put the matter squarely back on the agenda. The junior frontbencher admitted he did not know if Labor would restore the soon-to-be-axed Schoolkids Bonus or keep changes to the pension assets test and family payments. First, Mr Feeney explained his housing omission like this: "I guess I'd make the point that when people forget to register their car they don't forget they have a car".

"I never forgot I had a home, my failure ... was to not register the house in the register of interests." In the interview, Mr Feeney conceded his failure to declare a $2.3 million negatively geared property as "the biggest own goal of the campaign". The MP said he was "completely supportive" of Labor's policy to tighten the rules on negative gearing and capital gains tax - despite conceding he may be a "rich investor" himself, at least according to the "free character assessment he was getting last week". And Mr Feeney said it was not true that he had not known - as he initially told Fairfax Media - whether the Northcote property was negatively geared. "What I said to The Age at the time was that I wanted to go and check the circumstances of the house and come back with a forensic answer ... I wanted to check what the circumstances of the house were," he said.

"As my wife explained on radio on Friday, in our marriage she does the finances ... The Age of course mercilessly made it a story about me not knowing the answer instantly." But it only got worse from there for the Victorian MP when Speers asked if Labor would keep the $4.48 billion Schoolkids Bonus, which is due to end in July. "The Baby Bonus?" Mr Feeney asked. "The Schoolkids Bonus," Speers repeated. "You'll have to refer to our relevant shadow [minister]. I've been a little distracted over the last few days," Mr Feeney said.

But Speers was having none of it. "This is a four and a half billion measure, the last payment goes out the door in July. Labor has railed against it, it's voted against it and you don't know whether you are going to keep it?" "I refer you to the relevant shadow, I don't have the answer," Mr Feeney said. The relevant shadow, families spokeswoman Jenny Macklin, in March said that in relation to the Schoolkids Bonus Labor would "stand with Australian families against these cuts every day up to the next election", a clear indication it would reverse the cut. Mr Feeney, who must wish he had skipped the regular Sky interview like he had the previous week, was also unable to answer questions about whether a Labor government would proceed with changes to the pensions assets test or family payments.

"You've haven't got the cabinet on today David, you've just got little old me." The car crash interview on Wednesday will be a relief to Mr Morrison, who was forced to concede a black hole in his claim of a black hole in Labor's costings, and put pressure back on the opposition. Prime Minister Malcolm Turnbull dodged questions on Wednesday about the $67 billion claim and in fact, Labor's costings shortfall may be nearer to $22 billion. Follow us on Twitter Follow James Massola on Facebook