Jacinda Ardern defends herself against columnist's stinging attack over pregnancy

Prime Minister Jacinda Ardern has hit back at a UK columnist who said she's betraying voters by being pregnant.

On Sunday, The Daily Mail's Liz Jones suggested in an opinion piece New Zealand would have to compete with a toddler.

"Oh please! Giving birth months after winning an election isn't multi-tasking. It's more a betrayal of voters," Ms Jones wrote.

The AM Show's Amanda Gillies asked the Prime Minister what she thought of Ms Jones' opinion.

"I'd hope that maybe she'd asked a few New Zealand voters before she decided on their behalf," Ms Ardern said.

"I can't say I've read the blog, I've seen some reporting on it, and heaps of people are going to have views and everyone's entitled to their view."

Ms Ardern told The AM Show she's going to do everything she can to make it work.

"I know that all we can do is prove that this job is incredibly important to us.

"The role of Prime Minister is a privilege I don't take for granted which is why we're making sure that we have a good plan in place so that I don't let anyone down, and we don't let anyone down."

News that Jacinda Ardern and her partner, Clarke Gayford, will be welcoming their first child in June was largely greeted positively both in New Zealand and abroad.

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