Interim Conservative Leader Rona Ambrose says Prime Minister Justin Trudeau is a rich man who should pay for his own nannies and not saddle taxpayers with the cost of raising his three young children.

"Mr. Trudeau repeatedly, repeatedly said, 'I am wealthy,' Mr. Trudeau said, 'My family is rich, we don't need to use taxpayer dollars for our child care.' And now he is," Ambrose told reporters Wednesday after her party's caucus meeting.

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CBC News reported Monday that taxpayers are paying the wages of two nannies who care for the children of Trudeau and his wife, Sophie Grégoire-Trudeau. The hirings were approved late last week, with cabinet authorizing the appointment of the two women under the Official Residences Act as "special assistants" at the prime minister's residence.