Changes in the Senate since the election

SENATORS ELECTED IN 2016 WHO ARE GONE OR GOING

NSW - Fiona Nash (Nationals, dual citizenship), Sam Dastyari (Labor, scrutiny over links to a Chinese donor and businessman)

VIC - Stephen Conroy (Labor, retired)

QLD - George Brandis (LNP, to become Australia's high commissioner to the UK), Malcolm Roberts (Pauline Hanson's One Nation, dual citizenship), Larissa Waters (Greens, dual citizenship)

WA - Scott Ludlam (Greens, dual citizenship), Chris Back (Liberal, retired), Rod Culleton (Pauline Hanson's One Nation, disqualified by High Court)

SA - Nick Xenophon (NXT, resigned to contest state election), Skye Kakoschke-Moore (NXT, dual citizenship), Bob Day (Family First, disqualified over office leasing deal with Commonwealth)

TAS - Jacqui Lambie (Independent, dual citizenship), Stephen Parry (Liberal, dual citizenship)

UNDER THREAT

ACT - Katy Gallagher (Labor, dual citizenship)