The leaders of NZ First and National have been trading jabs today, as points of friction get discussed.

Winston Peters has voiced opposition to the Free Trade Agreement with India, which the Government is signing in New Delhi next week - despite not having the numbers to pass it into law.

Winston Peters says despite this, he's not negotiating with Labour, even if they win the election.

"I said, four years ago, clearly...I was never going to go back with Labour, for the reasons I laid out."

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