Former Shadow Minister for Defence Angus Taylor has triggered a formal leadership challenge against Sussan Ley, prompting a wave of coordinated frontbench resignations. The coalition is reeling from historic polling lows. While Mr Taylor campaigns for a "decisive" reset of the party’s values, a loyal faction of Liberals is fighting to protect Ms Ley’s position, arguing she deserves more time to stabilise the party room before Friday’s high-stakes ballot.