Australia has notched a separate trade deal with Japan. But NZ is unlikely to get behind Japan's tariff barriers outside of market access occurring within a regional deal like the proposed 12-nation strong TPP. The same applies when it comes to the United States and Canada.
New Zealand's Special Agricultural Trade Envoy Mike Petersen has been making the case for liberalisation within key markets included in TPP. There has been some success within the US where the dairy sector - which is now developing strong partnerships with Chinese counter-parties - sees stronger export opportunities within the fast-expanding Asian middle class. Although China is not part of the current trade gavotte it is widely expected to apply to join TPP if it does finally get done.
The White House will now embark on another round of arm-twisting to see if it can build sufficient support for legislation that will give Obama the powers to finalise negotiations on a TPP agreement that Congress can either accept or reject, but not amend.
Petersen - a realist - has said if it is not done by the end of June there is a risk that the political timetable in the US might overtake it.
Obama might be facing political hurdles and will inevitably have to make some deals to get the legislation to give him Trade Promotion Authority over the line.
While dairy is still a stumbling block as far as Canada is concerned, the US is putting the pressure on its northern neighbour to dismantle its highly protective regime of tariffs and quotas. NZ lobbyists have also played a role with the Five Nations Beef Alliance of NZ Beef and Lamb, and cattle organisations from Australia, the United States, Canada and Mexico.