"I got the report back from his visit. The issue of trade and other things was not really part of his brief. My view, our government's view about these issues is clear. That's what we're pursuing," Morrison told 2GB radio this morning.
He proceeded to echo the view Peter Dutton expressed shortly after Turnbull was removed from the Liberal leadership — essentially, that former prime ministers should not interfere.
"I'm always going to act with respect to previous prime ministers, regardless of who they are. But I do think the exemplar about how to go about things post-politics is John Howard, and on the Labor Party side, it's Julia Gillard," he said.
Earlier this week, Turnbull raised a few eyebrows by conspicuously liking a tweet showing Mr Morrison's rating as preferred prime minister had dropped. It seems Morrison noticed.
"I'm aware of it, but I just brush it off," he told 2GB.
The Prime Minister indicated Turnbull would no longer be sent to international events as a representative of the Australian government.
Turnbull responded with a blunt message on Twitter contradicting Morrison.
Then, a little later, he criticised the media for its reporting of his comment.
The Prime Minister clarified his own statements after Turnbull's tweets.
"As head of the delegation, he was briefed on appropriate responses on other issues that could be raised in any direct discussions with the president," Morrison said.
"Accordingly, there were briefings dealing with the issues he has referred to. The purpose of his attendance was the Oceans conference."
Morrison is not alone in his apparent annoyance. Other government MPs have publicly slapped down Mr Turnbull, suggesting he had made the Israeli embassy issue worse.
"Apparently we sent him over there because he's mates with Joko Widodo, but my gosh, if there was a small problem, he threw petrol on it," Turnbull's former deputy prime minister Barnaby Joyce said yesterday.
"I think it's a very fine line that he's treading," Liberal MP Craig Kelly told Sky News. "He doesn't speak for the government, he speaks for himself."
When Turnbull resigned from parliament, Morrison gave him a unique entitlement, legislating that he and his wife Lucy would have access to international travel expenses "when undertaking international travel approved by the Prime Minister".
That certainly implies the government planned for Turnbull to attend more than one conference. No other former prime minister has the same entitlement.
This isn't the first time Turnbull has been accused of interfering since he left Canberra.
In September, he reportedly lobbied his former colleagues to side with Labor and vote for Home Affairs Minister Peter Dutton's eligibility to sit in parliament to be referred to the High Court.
In response, Dutton implied Turnbull was bitter about his role in the week of leadership chaos that led to the former prime minister's downfall.
"Mr Turnbull never raised once with me any issue around Section 44," he said.
"The first it was ever mentioned by Malcolm Turnbull was during the leadership week.
"People can draw their own conclusions."
Like Morrison did this morning, Dutton compared Turnbull's interference to the "dignity" of another former prime minister, John Howard.
"I think John Howard's the gold standard here. I think he conducts himself with dignity, and I hope all former prime ministers can do that," Dutton said.
"I hope Turnbull's able to enjoy his retirement and contribute to the Liberal Party in the same way John Howard has."
