Former SAS member takes party’s Senate contingent to four – equalling its best result in 2016Australia news live: latest politics updatesFull federal election results: live Australian Senate seat countSee our full coverage of the Australian electionGet our breaking news email, free app or daily news podcastOne Nation has gained an unexpected Senate seat in New South Wales, taking Pauline Hanson’s party to four members in the upper house – equalling its best-ever result in a federal election.Warwick Stacey – a former member of the British army – has snagged the sixth Senate seat in NSW, and will join fellow new