What is 2017 Western Australian state election?
{{Infobox election | election_name = 2017 Western Australian state election | country = Western Australia | type = parliamentary | ongoing = no | vote_type = [[Instant-runoff_voting#Australia|First preference]] | previous_election = 2013 Western Australian state election | previous_year = 2013 | election_date = 11 March 2017 | next_election = 2021 Western Australian state election | next_year = 2021 | seats_for_election = All 59 seats in the [[Western Australian Legislative Assembly]] <br /> and all 36 members in the [[Western Australian Legislative Council]]<br /><small>30 Assembly seats were needed for a majority</small> | opinion_polls = #Opinion polling <!-- Labor --> | image1 = [[File:Mark McGowan headshot.jpg|150x150px]] | leader1 = '''[[Mark McGowan]]''' | leader_since1 = {{start date|df=yes|2012|1|23}} | party1 = Australian Labor Party (Western Australian Branch) | leaders_seat1 = [[Electoral district of Rockingham|Rockingham]] | popular_vote1 = '''557,794''' | percentage1 = '''42.20%''' | swing1 = {{increase}} 9.07 | swing_needed1 = | last_election1 = 21 seats | seats_needed1 = {{increase}} 9 | seats1 = '''41''' | seat_change1 = {{increase}} 20 <!-- Liberal --> | image2 = [[File:11 Nov gnangarra-16 (cropped).jpg|150x150px]] | leader2 = [[Colin Barnett]] | party2 = Liberal Party of Australia (Western Australian Division) | leader_since2 = {{start date|df=yes|2008|08|06}} | leaders_seat2 = [[Electoral district of Cottesloe|Cottesloe]] | last_election2 = 31 seats | seats_needed2 = {{steady}} | seats2 = 13 | seat_change2 = {{decrease}} 18 | popular_vote2 = 412,710 | percentage2 = 31.23% | swing2 = {{decrease}} 15.88 | swing_needed2 = <!-- National Party --> | image3 = [[File:Brendon Grylls.jpg|150x150px]] | leader3 = [[Brendon Grylls]] | leader_since3 = {{start date|df=yes|2016|08|09}} | party3 = N