Labour's Sue Moroney is about to embark on another mission to extend paid parental leave to 26 weeks.
Her member's bill was defeated in May but it's back on Parliament's agenda for a first reading debate today.
This time she's almost certainly got the numbers to pass it, but it's still doomed because the Government can kill it with a financial veto.
Under Government policy, paid parental leave increased from 14 to 16 weeks on April 1 and it's due to go to 18 weeks on April 1 next year.
Ms Moroney put her bill back in the ballot after it was defeated on a tied vote.
Since then the Government has lost a seat because of Winston Peters' victory in Northland.
"Labour has the support to get this bill through Parliament," Ms Moroney said last month when her bill was drawn from the ballot.
Finance Minister Bill English was ready to use his financial veto last time if the bill hadn't been defeated.
He said last month Government policy hadn't changed.
A financial veto can be used to kill a bill on its third reading if it would cost money that isn't in the budget.