The former Prime Minister Kevin Rudd will finish up his posting as Australia's ambassador to the United States a year earlier than expected.

He’s received thanks and praise from the Prime Minister for his work, but it’s raised questions about whether Mr Rudd's past critical comments about the US President have hastened his departure from the role. 

Today, former Australian ambassador to the US Arthur Sinodinos on the challenges of the posting, and Director of the ANU Australian Studies Institute, Mark Kenny on whether Mr Rudd’s position was still tenable. 

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Mark Kenny, Director of the ANU Australian Studies Institute 

Arthur Sinodinos, former Australian ambassador to the United States