The Latest Breaking News from Rita Saffioti

Western Australia's budget has unlocked land and slashed green tape to win the lion's share of investment in new industry but iron ore is still top of the heap.

WA has rolled out a "nation-leading" state budget, with billions of dollars to help families, boost housing supply and diversify its mining-led economy.

Former City of Stirling councillor David Michael becomes the WA government's newest cabinet member, as Roger Cook and Rita Saffioti are formally chosen to lead the state Labor party.

Incoming WA premier Roger Cook refuses to be drawn on the potential makeup of his front bench, saying he wants to let the process take its course.

Mark McGowan says he has no regrets about stepping down as premier and is looking forward to being "ordinary" as he arrived at work for his last day in the job.

With the withdrawal of his principal challengers and the implicit endorsement from key factions within the Labor party, Roger Cook will become Western Australia’s 31st premier. We can expect final endorsement from the Labor caucus and a formal swearing-in from the WA governor in the coming days.

After spending the morning meeting with a key WA Labor faction, it is confirmed Roger Cook will be the state's new premier.

Roger Cook has hit the ground running, gaining the approval of Labor's right faction today to confirm his endorsement as WA's next premier.

Roger Cook is poised to replace Mark McGowan as WA's next premier after Amber-Jade Sanderson dropped out of the leadership race.