Prime Minister John Key is trying to drum up enthusiasm for a free trade deal on his visit to the United States.
In a speech to the United States Chamber of Commerce overnight in Washington Key talked up the benefits of the Trans Pacific Partnership (TPP) trade deal.
TPP negotiations started in Melbourne last year, aiming to extend the existing agreement between New Zealand, Brunei, Chile and Singapore to include the US, Australia, Peru and Vietnam.
"TPP represents something genuinely new and important. It will establish a framework that will work for countries as diverse as Vietnam, New Zealand and the US," Key said in the speech.
Immediate prospects for the World Trade Organisation Doha trade negotiation round were poor, he said.