Well, Dr. Michael Bassett has certainly thrown something new into the mix - NZ First's largely unknown support base from the racing industry, which appears to have done well through its "investment" in Labour's critical support partner. The Sunday Star Times journalist Tony Wall has made allegations of NZ First getting substantial financial support from the industry and meanwhile benefiting from many policies of the current government peculiar to racing.
If true, this surely has to hurt, except of course, the truth that easily 5% of voters are dumb enough to believe anything this snake oil merchant has to say. He'll claim the SST is a paper of foreign big business, and is out to get him - and people will believe it.
(Hat Tip: No Minister)