Prime Minister Scott Morrison has declared the Liberal Party can hang on to all its WA seats at this year’s Federal election, making a pitch to “aspirational” voters as he begins a three-day campaign blitz of the State.

Speaking to The West Australian ahead of his visit, Mr Morrison labelled WA the “self-starter State”, praising voters in the west for being self-reliant and wanting to keep “more of what they earn”.

Sharpening his WA campaign message, where five seats could determine if the Coalition remains in government, Mr Morrison also took aim at Labor policies that he said would damage the mining sector and border security.

The former treasurer also claimed he deserved the State’s trust because he had delivered a deal on GST.

“Western Australians know that they can trust me because they have tested me, and I have delivered,” Mr Morrison said.

“I made them a pledge that I would fix the GST for Western Australia, and this is something that had eluded previous prime ministers and treasurers and I delivered.”

Declaring the Government would hang on to all five seats in WA that are being targeted by Labor, Mr Morrison said he believed voters in the State shared the “core” values of the Liberals.

“I think aspiration is a very strong characteristic of West Australians and not just recently,” he said. “It goes over generations — the remoteness of the State has meant you have got no one to rely on other than yourself, so it is by definition a self-starting State.

“Western Australians I think agree with us when I say you don’t have to smash someone down to allow somebody to get up, and I think that is a core value that we have in common with West Australians. They just want to be able to get on with it.”

Mr Morrison begins his blitz of WA electorates today, planning to campaign in Hasluck, Cowan, Pearce, Swan, Canning and Stirling before addressing the party’s State council on Saturday.

The Government has identified Cowan — held by Labor’s Anne Aly — as a seat it could win from the Opposition given its slim margin of 0.7 per cent.

Labor is confident it can pick up a handful of WA seats, with Opposition Leader Bill Shorten saying last week the party was competitive in as many as five key seats. Mr Morrison said the assertion was “arrogant”.

“But that is true to form. He is drunk on power and he hasn’t even gone to the election yet and I think Western Australians can spot arrogance when they see it in Bill Shorten,” he said.

“We intend to hang on to all of our seats ... because we have the records and the plans that I think support that outcome.”

Harking back to the high-water mark of the Liberals vote in the west at the 2013 election, Mr Morrison also reminded voters of the Labor’s record supporting the mining tax and on border security.

“The Labor Party doesn’t support the resources sector. West Australians remember it vividly from the mining tax days and they just can’t help themselves from going and poking the mining industry,” he said.

“(And) West Australians know full well the chaos that happened under Labor on border protection, they remember it probably more than most Australians because of their close connection to it.”

Mr Morrison will visit the Henderson shipyards this morning. Tonight he will be at a “politics in the pub” event with Attorney-General Christian Porter.