Morrison Fails To Come Up Trumps For G20

A White House schedule for the G20 summit reveals Prime Minister Scott Morrison will miss out on his first formal one-on-one meeting with US President Donald Trump in Argentina.

The summit, which starts in Buenos Aires on Friday, includes meetings between Mr Trump and the leaders of Turkey, South Korea, Germany, Argentina, Japan, India and China, but not Australia.

A planned meeting between Mr Trump and Russian President Vladimir Putin is also under a cloud after the US leader told reporters Russia's aggression towards the Ukrainian navy was giving him second thoughts.

US Vice President Mike Pence said during the recent APEC meeting in Papua New Guinea there would be a G20 meeting between the Australian prime minister and Mr Trump.

However, a spokesman for Mr Morrison told AAP the prime minister would still have an opportunity to touch base with Mr Trump.

"But given we have no pressing bilateral issues at the moment, and the PM had an extensive opportunity with VP Pence at APEC, there is no pressing need for a formal bilateral at this stage," the spokesman said.

"The relationship is being well-managed."

The opportunity could be in the form of a "pull aside" between the two leaders - an informal discussion on the sidelines of one of the summit sessions.

Meanwhile, Treasurer Josh Frydenberg has withdrawn from attending the G20 summit alongside Mr Morrison.

He will instead stay in Canberra where the government is dealing with the fallout from losing its majority in parliament.

Finance Minister Mathias Cormann will instead attend the summit, as he has done on three previous occasions.

Quizzed in parliament on Wednesday why he was not attending, Mr Frydenberg said: "It's a leaders meeting."

"The prime minister will represent this country at the G20 meeting, accompanied by the finance minister and he will be talking Australia up, unlike the Labor party which talks Australia down."

Shadow treasurer Chris Bowen said it was another missed opportunity to further Australia's economic interests.

"More involvement in the G20, not less, is vital to further Australia's economic interests and cooperation with the world's largest economies," he told AAP. Former foreign minister Julie Bishop said G20 summits were "hectic".

"But there are many opportunities for world leaders to meet, and the Australia-US relationship is strong and deep and it will continue whomever is in the White House, whomever is in The Lodge," she told reporters in Canberra.