The Liberal candidate for Wentworth, Dave Sharma, believes voter anger has subsided after the "traumatic" dumping of then-prime minister and local MP Malcolm Turnbull and he's hoping party supporters will return to the fold on Saturday.
But Independent MP Kerryn Phelps believes the anger that fuelled her by-election win in October is still bubbling below the surface in the Sydney seat.
Dr Phelps wrestled Wentworth from the Liberals for the first time in the electorate's history after campaigning on climate action and better treatment for asylum seekers detained offshore.
Seven months after the historic loss, Mr Sharma says much of the anger directed at the Liberal party has subsided.
"There was definitely a noticeable mood of anger and resentment in the electorate last time towards the Liberals, towards us as a party, because of the leadership instability and the turmoil," Mr Sharma told AAP.
"(But) some of that feeling has dissipated, as you would expect."
Mr Sharma is hoping the low by-election voter turnout - 76 per cent - suggests many traditional Liberal voters stayed at home, too angry to vote for the party, but not willing to support anyone else.
"I suspect the people who stayed away were probably traditional Liberal voters who were just too angry to come and vote," he said.
"Undoubtedly some voters are still annoyed or irritated by that, we lost some of those voters obviously at the by-election and I'm not counting on us getting any of them back, but I'm trying my best to."
Wentworth had a voter turnout of 86 per cent in the 2016 election - the fifth lowest in Australia.
Dr Phelps argues the anger with the Liberal party hasn't dissipated.
"The anger is still there but it has shifted from the removal of Malcolm Turnbull (in August 2018) to the lurch to the far right of the Liberal party in the intervening six months," Dr Phelps told AAP.
"There is a very big focus on the environment, and that is broadly around action on climate change, and a lack of action by the two major parties."
The sitting MP expects to lose some support from traditional Liberal voters who temporarily changed their colours in October but is putting her faith in a strong youth vote.
Dr Phelps has been working with fellow independents Zali Steggall in Warringah and ex-Liberal Julia Banks in Flinders.
"We're sharing experiences and advice, yes, and observations," she said.
"It's remarkable how shared values can bring people together."
Labor candidate Tim Murray says Dr Phelps' only chance of retaining Wentworth lies in the youth vote.
"Unless we get youth out, it's Dave Sharma," he told AAP.
"Enough of the previous Liberal voters who protested will go back ... they've done their protest and they're coming back."
Australian Associated Press