THE SENATE RACE
* 40 seats are up for grabs at the half-Senate election
* Six senators are being elected in each state and two in each territory
QUEENSLAND
Five sitting senators are up for re-election:
Matt Canavan (Nationals)
Anthony Chisholm (Labor)
Pauline Hanson (One Nation)
James McGrath (Liberal)
Amanda Stoker (Liberal)
Murray Watt (Labor)
Possible result: LNP three seats, Labor two, with Pauline Hanson also being returned.
The Greens' Penny Allman-Payne, United Australia Party's Clive Palmer and the Liberal Democrats' Campbell Newman are also in the running.
NSW
Four sitting senators up for re-election:
Jenny McAllister (Labor)
Jim Molan AO DSC (Liberal)
Deb O'Neill (Labor)
Marise Payne (Liberal)
The Nationals are standing Ross Cadell on the coalition ticket.
Possible result: Liberal two, Nationals one, Labor two, Greens' David Shoebridge or Labor's Shireen Morris taking the sixth seat.
VICTORIA
Five sitting senators up for re-election:
Sarah Handerson (Liberal)
Bridget McKenzie (Nationals)
Greg Mirabella (Liberal)
Jana Stewart (Labor)
Lidia Thorpe (Greens)
Possible result: Liberal two, Nationals one, Labor two (union leader Linda White taking the second seat), Greens one.
WA
Six senators seeking re-election:
Michaelia Cash (Liberal)
Dorinda Cox (Greens)
Sue Lines (Labor)
Ben Small (Liberal)
Dean Smith (Liberal)
Glenn Sterle (Labor)
Possible result: Liberal three, Labor two, Greens one
SA
Six senators seeking re-election:
Simon Birmingham (Liberal)
Don Farrell (Labor)
Stirling Griff (Centre Alliance)
Andrew McLachlan (Liberal)
Rex Patrick (Independent)
Penny Wong (Labor)
Wildcard: Nick Xenophon is making a fresh tilt for the upper house
Possible result: Liberal two, Labor two, with the final two seats being a race between Liberal Kerrynne Liddle, Xenophon, the Greens' Barbara Pocock and Patrick.
TASMANIA
Six senators seeking re-election:
Eric Abetz (Liberal)
Wendy Askew (Liberal)
Jonathon Duniam (Liberal)
Helen Polley (Labor)
Anne Urquhart (Labor)
Peter Whish-Wilson (Greens)
Possible result: Liberal three, Labor two, Greens one.
ACT
Two senators seeking re-election:
Katy Gallagher (Labor)
Zed Seselja (Liberal)
Wildcard: former Wallaby David Pocock running as an independent.
Possible result: Labor one, Liberal one.
NT
Two senators seeking re-election:
Malarndirri McCarthy (Labor)
Sam McMahon (Liberal Democrats, but was elected last time as a Country Liberal)
Wildcard: Country Liberal Party is running high-profile Indigenous leader Jacinta Nampijinpa Price
Possible result: Labor one, CLP one.
Australian Associated Press