When the Liberal party puts out its how-to-vote cards at the next federal election, it will preference One Nation one lower than Labor.

Prime Minister Scott Morrison said he had been talking with key party officials as pressure builds within the Liberals to distance themselves from One Nation after the Christchurch Mosque Massacre and the stunning revelations from Al Jazeera showing party figures trying to solicit millions of dollars from the US gun lobby.  The same investigation caught One Nation leader Pauline spinning conspiracy theories about Australia's great tragedy, the 1996 Port Arthur Massacre.

"I have been in touch directly with them today and overnight, because ultimately this is a decision for the party organisation," Morrison said, "but my recommendation to them, which they're accepting, is that One Nation will be put below the Labor party at the next election by the Liberal party."

The PM added that his decision was "based on our strong view about the sanctity of Australia's gun laws and to ensure that at no stage that those things should ever be put at risk."

The assault weapons ban spearheaded by then-Prime Minister John Howard were an example applauded around most of the developed world - except for big, dumb America - and a source of pride for many in the Liberal Party.  And the sight of One Nation officials seeking foreign money in exchange for weakening those laws was appalling.

"I found the behaviour of those officials particularly appalling and I left it for a few days to see what the response of the One Nation leadership would be to those events and sadly I'm disappointed, and I find the response to the action of those One Nation officials unsatisfactory," said Morrison.

However, the Liberals' coalition partner isn't doing the same just yet.  "When it comes to preferences, as is the case with every election, the Nationals are a grassroots party and decisions are made at a state and local level," said Nationals leader and Deputy PM Michael McCormack.  

In Queensland, where the Lib-Nats exist as one party, those who sit in the Liberal party room will follow Morrison's directive and preference One Nation below Labor.  Those who sit in the Nats' party room will decide for themselves.