Deny, deny, deny. Attack, attack, attack. That's been Labour's response to businessman Donghua Liu claiming he donated tens of thousands of dollars to the Party.
Labour's strategy is risky. It is challenging Liu's honesty and integrity. He's no doubt feeling aggrieved. The danger for Labour is that Liu produces documents, witnesses and photographs confirming his substantial donations.
That's what did it for Winston Peters in 2008. Sir Owen Glenn was able to prove the donations that Peters denied.
Labour also risks drying up its donations. Attacking a donor is hardly encouraging to others. I doubt there will too many Chinese charity auctions for Labour this election.
It's a risky response but Labour's entire attack strategy has been risky. Attacking John Banks for declaring Dotcom's donations as anonymous ran the risk that its own house wasn't in order. Likewise in attacking Maurice Williamson for ringing the police on Liu's behalf.