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Jacinda Ardern is meeting US President Joe Biden and Vice President Kamala Harris on Tuesday in the US.
It's only the third-such formal invitation a New Zealand Prime Minister has had from the White House in the past 20 years.
Former Prime Minister Sir John Key visited the White House twice in his time.
He told Heather du Plessis Allan it's great Ardern will get the opportunity.
“They’re always important in terms of relationship building, but I’d be very surprised if they come out with any sort of immediate deliverable.”