Opposition leader Christopher Luxon is continuing to flag tax cuts and government spending as two of the battleground subjects for the next election.
The government is weighing in, too, with Grant Robertson heaping scorn on National's ability to somehow lift tax thresholds without affecting essential government services.
The to-ing and fro-ing takes place against the backdrop of 11 National MPs out of public action after testing positive for Covid.
Christopher Luxon, who's also one of the Covid-affected, spoke to Corin Dann.