Variations of that question featured in a game of cat and mouse as media covering NZ First's conference at the weekend tried to pin Mr Peters down on his bottom line.
He did make it clear NZ First would never support Labour's policy. But then the Maori Party doesn't support a number of National's policies but the two parties have agreed to differ on those and they are still in coalition together.
The closest to an unequivocal answer came when Mr Peters was asked if NZ First could work with Labour in 2014 if the larger party maintained its Super age policy.
The answer was a clear "no".
Mr Peters said NZ First could never be part of a government that raised the pension age, but Labour's policy wouldn't do that until 2020 - three elections away. Mr Peters is unlikely to be around by then.
Labour could potentially get around Mr Peters' bottom line by simply parking the policy during the 2014-2017 term while giving a signal it remained on the backburner.
And while Mr Peters told the Herald last week that he was unconvinced by current advice from the likes of the Treasury and the finance industry that the increase was necessary, he didn't rule out changing his mind if the evidence was more compelling.
So does Labour's pension-age policy rule out a coalition with NZ First?
The question, if not the answer, remains a tricky one.