This prime minister did not win office as the result of an election, and was not (or has not been) in office long enough to contest an election as prime minister; see 'Period in office' table above.
Change of party leader: Beginning of Morrison's period in office: A long series of unfavourable public opinion polls for the coalition government had led to dissatisfaction within the Liberal Party caucus over the performance of Turnbull as Prime Minister. By August 2018, caucus disagreements over Turnbull's energy policy prompted a challenge to Turnbull's leadership by Peter Dutton. In a caucus ballot on Tuesday 21 August, Turnbull retained his position as Liberal Party leader by a vote of 45 to 38 against Dutton. But developments within the Party required Turnbull to call a second Liberal caucus meeting on Friday 24 at which he was forced to resign and did not contest the leadership. In the vote for party leader which followed, the three-way contest between Julie Bishop, Peter Dutton, and Scott Morrison was won by Morrison with 45 caucus votes to Dutton's 40.
Morrison was commissioned to form a Liberal Party and National Party coalition government on Friday 24 August 2018. Morrison's full ministry of 30 ministers was commissioned on Tuesday 28 August 2018. Assistant ministers (formerly called parliamentary secretaries) are not included in the list of ministers.
Party composition of ministry: In the table of ministers, above, the composition of the coalition's parties have been assigned as follows: the Prime Minister's party (the Liberal Party) with 22 ministers; the National Party (coalition party 1) with 3 ministers; and the 4 Queensland Liberal National Party ministers and the single minister from the Country Liberal Party from the Northern Territory making 5 ministers in coalition party 2.
The coalition parties can also be divided according to the party caucus in parliament to which the ministers belong: this gives 24 ministers from the Liberal caucus and 6 ministers from the National Party caucus. The complicating factor is that, of the four ministers from the Queensland Liberal National Party, two choose to sit as Liberals (Steven Ciobo and Peter Dutton) and two sit as members of the National Party caucus (Matt Canavan and David Littleproud) as does the Northern Territory Country Liberal Party senator Nigel Scullion.