New Zealand First is flexing its muscles within the coalition, now publicly criticising some of the commercial rent measures its partner Labour had been pushing for - which it ended up blocking.
After two months of wrangling, Labour and New Zealand First have reached agreement on how to help small businesses struggling to pay the rent.
A temporary change to the law means from today if tenants and landlords can't negotiate a fair price they go into compulsory arbitration.
Here's RNZ political editor Jane Patterson.