Julie Bishop has highlighted her energy and experience as she makes her pitch to finally be Liberal leader after serving as deputy to three men over the past decade.

Prime Minister Malcolm Turnbull is expected to stand down on Friday if a party room meeting votes for a spill of the leadership.

So far, former home affairs minister Peter Dutton, Treasurer Scott Morrison and Ms Bishop, the long-serving foreign minister, have declared their intentions to stand.

The Australian has reported that Ms Bishop, who was deputy to Brendan Nelson and Tony Abbott before Malcolm Turnbull, has told colleagues she wouldn’t be “another man’s deputy”.

She’s told The West Australian she was nominating because she cares deeply about the nation’s future.

“Australians must have confidence that the government is focused on the daily challenges of their lives and their concerns and their interests,” Ms Bishop said.

“I am optimistic about the potential of our people and will commit all my energy and experience to ensure the best years of our nation lie ahead of us.”

Perth-based Ms Bishop would be the first West Australian since John Curtin – who died 73 years ago – to lead the country

The 62-year-old joined federal politics at the 1998 election as Perth’s member for Curtin.

She was first elected deputy Liberal leader under opposition leader Dr Nelson after the 2007 poll which ended the political career of John Howard.

-AAP