However, unlike others, she is already sitting in parliament as a member of Chisholm in the center of the Melbourne suburb of Cook Hill, which she won as a liberal candidate in 2016 ahead of a spectacular decline when she withdrew from the party and moved to the crossroads the leadership crisis and the bullying in which he witnessed in federal politics.
"It was a culture of terrible behavior that was an entrenched, anti-female culture," she said of what she saw in the Liberal Party last year.
"But also the right wing of the Liberal Party clearly created what I call parliamentary roadblocks on issues such as climate change, and the climate change action is, in my opinion, an urgent imperative."
"It was very frustrating for me to be in the Liberal Party and see the benefits of the National Energy Guarantee, and then see it basically used as an incitement to fuel the government."
She will continue to work on her electorates for the constituents in Chisholm until the election is announced, and she began her formal campaign for Flinders, where she now lives with her husband after spending much of her childhood there.
Ms Banks said local residents in Flinds felt they were "taken for granted" by Mr. Hunt and could not understand his decision to help Interior Minister Peter Dutton become prime minister last August.
"They are particularly upset about Greg Hunt's role in the leadership's expiration, as an attacker to Peter Dutton and wanting to overthrow Malcolm Turnbull and Julie Bishop," she said.
Mr Hunt was one of the ministers of the government who voted for Mr Dutton in the first lead on August 21, and then resigned to support Mr Dutton in the second vote, on August 24, which won Mr. Morrison.
Ms. Banks, a former attorney and chief company advisor, including George Weston Hraus and GlaxoSmithKline, supports many of Turnbull's tax policies, but pauses with Morrison's policy on climate change policy.
She said she opposed the tax on labor tax proposals, including changes to the negative debts for investment property and its retention of cash back for shareholders who benefit from taxation for dividends.
"This is a terrible proposal for people who are not mandatory high-income people, but they want to be self-satisfied," she said about changes in the working of dividend tax rules.
"Regarding the negative preparation, I oppose these changes. I believe that this will affect real estate markets and, again, that does not only mean people with high income who invest in the housing market."
If elected and faces hung parliament where it needs to support either the labor or the coalition, Ms. Banks said she would make her decision on the "context at the time", rather than pointing out to which party she would return.
In priority pre-election agreements, she said she wants to issue an "open ticket" without advising voters to give their second preferences to one or the other, but she also said she would keep her options open to making best for her campaign.
The speculations for Ms. Banks are being built for months. She said she had decided to run for Flinders in the summer, following her decision not to reconstruct Chisholm last year.
Mr Hunt said he had treated Flinders as "quite marginal" since the first day that he put forward to run for the seat.
"I went only 500 kilometers around the electorate and it's part of the passion to visit 50 schools and 50 cities for a period of three weeks and work for autism, work and meet families," he said Wednesday.
Mr Hunt said he was fighting for better cancer services in the local area, upgrading the Rosbod hospital and electrifying the Baxter railway line.
"Labor opposes electrification at the state level of the railway line to Baxter, a short dive changer on the peninsula. So there are things we are fighting for," he said.
David Crowe is the chief political correspondent of Sydney Morning Herald and The Age.