Previous election The outcome of the 2016 federal election could not be determined on election night, with too many seats in doubt. After a week of vote counting, neither the incumbent
Turnbull government led by
Prime Minister Malcolm Turnbull of the
Liberal/
National Coalition nor the
Shorten Opposition led by
Opposition Leader Bill Shorten of the
Australian Labor Party had won enough seats in the 150-seat
House of Representatives to form a
majority government. During the uncertain week following the election, Turnbull negotiated with the
crossbench and secured
confidence and supply support from
Bob Katter and from independents
Andrew Wilkie and
Cathy McGowan in the event of a hung parliament and resulting
minority government. During crossbench negotiations, Turnbull pledged additional staff and resources for crossbenchers, and stated "It is my commitment to work in every way possible to ensure that the crossbenchers have access to all of the information they need and all of the resources they need to be able to play the role they need in this parliament". On 10 July, eight days after the election took place and following Turnbull's negotiations with the crossbench where he secured sufficient confidence and supply support, Shorten conceded defeat, acknowledging that the incumbent Coalition had enough seats to form either a minority or majority government. Turnbull claimed victory later that day. In the closest federal majority result since the
1961 election, the
ABC declared on 11 July that the incumbent Coalition would be able to form a one-seat majority government. It was the first election result since
federation where
the post-election opposition won more seats than the post-election government in both of Australia's two most populous states,
New South Wales and
Victoria.
Result In the 150-seat House of Representatives, the one-term incumbent Liberal/National Coalition government suffered a 14-seat swing, reducing it to 76 seats—a bare one-seat majority. With a national three-point two-party swing against the government, the Labor opposition picked up a significant number of previously government-held seats to gain a total of 69 seats. On the crossbench, the Greens, the
Nick Xenophon Team,
Katter's Australian Party, and independents Wilkie and McGowan won a seat each. On 19 July, the
Australian Electoral Commission (AEC) announced a re-count for the Coalition-held but provisionally Labor-won
Division of Herbert. At the start of the Herbert re-count, Labor led by eight votes. The AEC announced on 31 July that Labor had won Herbert by 37 votes. The final outcome in the 76-seat
Senate took more than four weeks to determine, despite significant voting changes. Earlier in 2016, legislation changed the Senate voting system from a full-preference
single transferable vote with
group voting tickets to an
optional-preferential single transferable vote. The final Senate result was announced on 4 August: Liberal/National Coalition 30 seats (−3), Labor 26 seats (+1), Greens 9 seats (−1),
One Nation 4 seats (+4) and Nick Xenophon Team 3 seats (+2).
Derryn Hinch won a seat, while
Jacqui Lambie,
Liberal Democrat David Leyonhjelm and
Family First's
Bob Day retained their seats. The number of crossbenchers increased by two to a record 20. The Liberal/National Coalition will require at least nine additional votes to reach a Senate majority, an increase of three. The Liberal and Labor parties agreed to support a motion in the parliament that the
first six senators elected in each state would serve a six-year term, while the last six elected would serve a three-year term.
Changes in parliamentary composition Since the 2016 election, a number of parliamentarians resigned from their seats, while some with dual citizenship were disqualified by the
High Court of Australia in the
parliamentary eligibility crisis. However, in the cases of disqualified House of Representatives MPs, most of these were returned in resulting
by-elections. Some MPs changed their party affiliation or their independent status. Following the parliamentary eligibility crisis, the AEC's form for nomination was updated to ask detailed questions on whether candidates are disqualified under
Section 44 of the Constitution of Australia. Three Victorian Liberal candidates had to withdraw based on section 44 issues.
Change of Prime Minister Following the
Liberal Party leadership spill on 24 August 2018, Malcolm Turnbull was replaced as prime minister by Scott Morrison. Turnbull resigned from parliament on 31 August, triggering a
by-election in his former seat of Wentworth. The by-election was won by independent
Kerryn Phelps. This, combined with National MP
Kevin Hogan's move to the crossbench and the resignation of MP
Julia Banks from the Liberal Party, reduced the government to 73 seats going into the election; a net three-seat deficit. Further dissatisfaction within the Liberal Party saw a number of
centrist and
economically-liberal candidates announce that they would nominate as
independents in wealthy electorates, with a specific focus on "
addressing climate change". ==Candidates==