Ms Campbell is a barrister and has served as Melbourne’s Deputy Lord Mayor since the 2024 council election.

The candidates announced include incumbent upper house MP Rikkie-Lee Tyrrell, who will seek re-election in Northern Victoria.

Mr Carroll confirmed the resignations on Thursday and said Labor MPs would meet on Monday morning to elect new ministers before he announced his reshaped cabinet.

The party accused what it called the “woke educational establishment” of denigrating Australian history

Her departure means she will no longer attend Liberal party-room meetings or be bound by its collective decisions.

Carroll's political career began behind the scenes as an adviser to former Victorian premiers Steve Bracks and John Brumby

The outcome of the Western Metropolitan preselection is expected to be one of the most closely watched internal decisions of the campaign

He had met Ms Allan and informed her that he would nominate for the leadership, arguing the consequences of the November election were too serious to ignore.

No formal leadership challenge has been announced, no challenger has publicly declared an intention to run

The reopening gives prospective candidates only a limited period to complete the application and review requirements before Monday’s 5 pm deadline.