expansion of the Snowy Mountains Scheme as a key component in enabling the transition to renewable energy. In late 2017, the government experienced a parliamentary eligibility crisis that saw fifteen parliamentarians forced out of Parliament due to concerns about dual citizenship. To address climate change and reform energy policy, in August 2018 Turnbull proposed the National Energy Guarantee. Although initially agreed to by the Cabinet, the policy was ultimately rejected by the party room. This, combined with poor opinion polling, led to Peter Dutton challenging Turnbull for the Liberal leadership. Although Turnbull defeated Dutton in the party room, a majority of MPs demanded a second spill, which Turnbull did not contest. On 24 August 2018, Scott Morrison defeated Dutton and Julie Bishop in the contest, and replaced Turnbull as prime minister. Turnbull resigned from Parliament, triggering a by-election in his former seat of Wentworth. The Liberal Party lost the by-election to independent candidate Kerryn Phelps, which resulted in the Coalition losing its absolute majority in the House of Representatives. Since retiring from politics, Turnbull has become an advisor to Kasada, an Australian cybersecurity start-up. He has been critical of the direction of the Liberal Party, and has joined with fellow former prime minister Kevin Rudd in criticising the dominance of Rupert Murdoch's News Corp in Australian political debate. Early life and education Malcolm Bligh Turnbull was born in Sydney, on 24 October 1954, the only child of Bruce Bligh Turnbull and Coral Magnolia Lansbury. His father was a hotel broker, while his mother was a radio actor, writer, and academic, and a second cousin of the British film and television actress Angela Lansbury. His maternal grandmother, May Lansbury (née Morle), was born in England, while his other grandparents were Australian-born. He is also of Scottish descent; his great-great-great-grandfather John Turnbull (1751–1834) arrived on the Coromandel in 1802 in New South Wales and became a tailor. In an interview in 2015, Turnbull said that his middle name "Bligh" has been a family tradition for generations, originally given in honour of Governor William Bligh. Turnbull's parents married in December 1955, fourteen months after his birth. They separated when he was nine, with his mother leaving first for New Zealand and then the United States. Turnbull was from then raised solely by his father. Turnbull suffered from asthma as a young child. Turnbull spent his first three years of school at Vaucluse Public