Prime Minister Mark Carney said Tuesday he should not have been dismissive of reporters' questions about speaking to U.S. President Donald Trump, conceding he used "a poor choice of words."

Carney dodged questions about the last time he spoke to his U.S. counterpart Sunday, saying 'who cares?' when pressed in Johannesburg, South Africa, after the G20 summit.

"We've had discussions. I've been busy," Carney said when asked about connecting with Trump. "He's got other things to do and we'll re-engage when it's appropriate."

Asked again to detail when he last spoke to Trump, Carney said: "Who cares? I mean, it's a detail. I spoke to him. I'll speak to him again when it matters." WATCH | Carney admits 'poor choice of words':

Carney admits 'poor choice of words' when saying 'who cares' abo

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