Kerryn Phelps, the independent candidate who held the lead in the race for Wentworth, offered cold comfort to the ruling coalition.
The Government is again in turmoil after a horrorshow by-election in Wentworth on Saturday, which was called in favour of Dr Phelps less than 90 minutes after the polls closed.
A late run of Liberal postal votes, which briefly reignited the prime minister's hopes that Liberal candidate Dave Sharma could overtake Dr Phelps, now appears unlikely to change the outcome.
The same thing happened to Julia Gillard after the 2010 election, although with just 72 Labor MPs in parliament, she was even more at the mercy of the crossbench.
The prime minister was contrite on Sunday morning, saying the Liberals needed to heed the lessons of the huge protest vote. What impact such an intervention would have had "ultimately is for others to judge", Morrison said. "I'm behind Kerryn and it will be hard to make that up".
In a series of posts and videos, he said the Morrison government had been captured by right-wing "extremists" - he also created a "top 5 craziest Liberals" list. "That can throw the entire government into a lot of uncertainty", the Prime Minister said.
Mr Turnbull, an investment manager who lives in Singapore, said the Liberal party has been hijacked by "extremists" and "crazies" who were forcing it to adopt extreme positions on climate change and refugees.
Australia's opposition Labor Party, for instance, had its roots in organized labor, and "people don't join unions anymore", Roggeveen said.
"I " ll support good legislation.
"Now, I don't see how he can argue that and not then say that we have to have an election".
He admitted the by-election showed voters were furious about Turnbull being ousted.
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"Liberals are angry and they've expressed that", Morrison said.
"The Liberal Party has paid a big price tonight for the events of several months ago", he told the party faithful.
Sharma, who was Australia's ambassador to Israel between 2013 and 2017, congratulated Phelps on her victory, describing her as a "formidable" opponent and admitted his first electoral campaign was "bruising".
"I just felt so strongly this time and I actually felt I had the ability to stand up and go 'enough is enough, '" Phelps told Studio 10 on Monday.
"We are elected to serve our term and that is what we are going to do".
Before the Wentworth upset, Morrison had indications of support from the Victorian independent Cathy McGowan and the Queensland crossbencher Bob Katter. "There are still many postal votes to be counted", Mr Morrison said in Sydney. But conservatives say the seat does not reflect the rest of of Australia and is not a prediction of what will happen at the next federal election. Wentworth is an unusual seat. "It's quite an extraordinary seat", Peta Credlin told Sky News.
The by-election in the wealthy seat was triggered after Turnbull, the local MP, resigned after being toppled in a party coup in August.
Wentworth resident Roslyn Taylor said she was frustrated with politicians and the chaos that has plagued the main parties in recent years. "I think she'll be very influential". "It's absolutely a big hit". But the huge swing against the party also reflected mistakes that Mr Morrison himself made during the campaign.
"The government does not want to see children on Nauru".
"None of them have really got their mind on the job".