Premier Colin Barnett admits he is uncomfortable with the One Nation preference swap deal that has dogged much of his election campaign.

The admission could signal the start of finger pointing inside Liberal Party, as insiders fear the preference swap may not provide the benefits at the ballot box that were hoped for.

Speaking on ABC radio this morning, presenter Sabra Lane asked the premier if he was uncomfortable with the One Nation deal nutted out by party bosses.

“Yes I am personally,” Mr Barnett replied.

“But at the same time, can I say I accept the reality of that.

“Micro-parties game the system. They game it and trade preferences.”

Asked if in hindsight he wished the preference deal was not done, Mr Barnett said:

Play Video One Nation's 'how to vote' cards are believed to breach electoral laws, by not including the printer's name. The West Australian Video One Nation's 'how to vote' cards are believed to breach electoral laws, by not including the printer's name.

“No I don’t. It’s a mathematical exercise. It will not determine government. And in no way do I or the Liberal Party support any of their candidates or their policies.”

The Premier has struggled to get clean air during the election campaign in the wake the One Nation deal.

It is understood Liberal party strategists had thought the deal would amount to a few days of bad headlines, but the story has followed the premier throughout the campaign.

Should the One Nation swap end badly in WA it could also cause a headache for Prime Minister Malcolm Turnbull.

Camera Icon A Pauline Hanson look alike gate crashes a Liberal party press conference in East Perth. Credit: Mogens Johansen/The West Australian

One of Mr Turnbull’s main supporters, Arthur Sinodinos has championed the deal and flagged the idea of similar preferences swaps between the two parties in other states in the future.

Those comments have infuriated some inside the Nationals - the traditional alliance partners of the Liberals.

Last week National party stalwart Ron Boswell said Senator Sinodinos would rue the day he legitimised Pauline Hanson and complained the Turnbull Government was only governing “for two weeks out”.