The Obamas have never invited the Clintons for dinner at the White House, but there have been other encounters like a recent golf game and an impromptu joint briefing room appearance in 2010 and a private 2011 meeting in the Roosevelt Room that generated an energy-efficiency initiative.
Usually, votes are taken in the separate Liberal and National party rooms, but it is understood the vote could be taken in the joint party room, though this may depend on where the issue is initially raised.
A vote in the joint party room on such an issue is very rare.
Coalition MPs discussed the impact of the "dishonest" union campaigns at a joint party room meeting on Tuesday.
But Israel then moved to set up an additional special joint operations room with the main humanitarian agencies near Tel Aviv.
The government decided during its joint party room meeting on Tuesday to adopt all 27 recommendations of the joint committee on intelligence and security.
Try bringing a lamb joint to room temperature and then cooking it in a cooler oven than normal, say around 150C, gas mark 3.
Declassified documents reveal his concerns: "What would I say to the Joint War Room to launch an immediate nuclear strike?" Kennedy asked.
Turnbull supports marriage equality and opposed holding a plebiscite when the then prime minister, Tony Abbott, suggested one at a joint party room meeting in August last year.
I have heard the arguments that as prime minister, Malcolm Turnbull can't do this on his own, and that he has to reflect the views of the coalition joint party room.
