Ivanka Trump spat the dummy and cut off an interview with Cosmopolitan magazine after she was asked about some of Donald Trump’s past comments about childcare and maternity leave.

CNN has reported that Ms Trump criticised the interviewer for having “a lot of negativity” in her questions and cut off the phone interview when things didn’t go her way.

Ms Trump had agreed to the interview with the aim of highlighting her father’s new childcare policy, which she reportedly has helped design and launch to the electorate.

According to the transcript made public by interviewer Prachi Gupta, Ms Trump was asked: “In 2004, Donald Trump said that pregnancy is an inconvenient thing for a business. It’s surprising to see this policy from him today. Can you talk a little about those comments, and perhaps what has changed?”

“So I think that you have a lot of negativity in these questions,” Ms Trump said, according to the Cosmopolitan transcript.

“So I don’t know how useful it is to spend too much time with you on this, if you’re going to make a comment like that.”

Ms Trump asserted that the question was “an unfair characterisation of his track record and his support of professional women”.

But Gupta was repeating the comment made by Mr Trump to NBC in 2004, in which he said pregnancy is “a wonderful thing for the woman. It’s a wonderful thing for the husband. It’s certainly an inconvenience for a business. And whether people want to say that or not, the fact is it is an inconvenience for a person that is running a business.”

Gupta continued: “I would like to say that I’m sorry the questions —you’re finding them negative, but it is relevant that a presidential candidate made those comments. So I’m just following up.”

“Well, you said he made those comments. I don’t know that he said those comments,” Ms Trump replied.

“I hope that regardless of what your political viewpoint is, this should be celebrated,” she added.

Trump also clashed with Gupta when asked why the campaign’s paid leave proposal didn’t apply to gay couples or include paternity leave.

She said that the reason the proposal wouldn’t include to those groups is that “the original intention of the plan is to help mothers in recovery in the immediate aftermath of childbirth.”

“So I just want to be clear that, for same-sex adoption, where the two parents are both men, they would not be receiving special leave for that because they don’t need to recover or anything?” Gupta asked.

Trump said: “Well, those are your words, not mine. Those are your words. The plan, right now, is focusing on mothers, whether they be in same-sex marriages or not.”

She said child-bearing mothers in lesbian relationships couples would be eligible under the plan.

When Gupta then asked Ms Trump about how Mr Trump proposed to pay for some of his most expensive policy proposals — such as the border wall with Mexico, infrastructure investment, and increased defence spending — Ms Trump said that the policies would all be paid for as a result of the Trump campaign’s forthcoming tax-reform plan.

She then cut the interview off.

“I’m going to jump off — I have to run. I apologise,” Ms Trump said.

She later tweeted: “@Cosmopolitan, your readers do & should care about issues impacting women & children. Keep the focus where it belongs — advocating change.