Former British foreign minister Boris Johnson made what was seen as a blatant pitch to replace Prime Minister Theresa May as leader, damning her Brexit plans while calling for their party to regain its confidence.
Ms May has shown little sign of moving away from her so-called Chequers plan, but after trying to display unity over Brexit at her party's annual conference in the city of Birmingham, Mr Johnson looked to have shattered those attempts.
Sixty-five-year-old party member Louise Hyams, from London, said she supported May and had been "worried" Johnson would use his much-hyped speech to attack the Prime Minister.
Speaking at a fringe meeting hosted by the ConservativeHome website, Mr Johnson will say: "We must on no account follow Corbyn, and start to treat capitalism as a kind of boo word".
"It would mean that whatever the European Union came up with in future. all this nonsense we would have to implement with no ability to change or resist", he said.
"We must show everyone in this country that we are that party".
The Prime Minister will say that as Britain faces this "moment of opportunity", the Conservatives will always act in the "national interest" and put the needs of hard-working people first.
Mr Johnson said that Mrs May's Chequers blueprint - which ties Britain to a common rulebook with the EU for trade in goods - would be "politically humiliating for a £2 trillion economy" and would subject the United Kingdom to European directives and rules.
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Mr. Johnson got a rapturous reception on Tuesday when he unloaded on Ms.
In what may be seen as a swipe at Mrs May's focus on righting "burning injustices" in society, he will urge the party not to "ape Corbyn" but to "take basic conservative ideas and fit them to the problems of today".
"I've said, I'm in this for the long term, but not just for the Brexit deal but the domestic agenda (too)", she said.
She told the BBC Johnson's alternative Brexit proposals would, she said, tear up the United Kingdom by forcing Northern Ireland to operate separately from the rest of the U.K. On that score she is supported by leader Arlene Foster and the Democratic Unionist Party (DUP), the Northern Ireland party whose 10 seats are helping to keep the Conservatives in power.
He added: "My fellow Conservatives, this is not democracy".
Naming Margaret Thatcher, the prime minister from 1979 to 1990 who remains a hero to many in the party, he called on Conservatives to build more houses and, while courting business, he struck out at bankers over the 2008 financial crisis.
In his letter to Brady, Duddridge said that he is normally a loyalist, and has never voted against the government until now. "No, because I think we probably can't have the self-indulgence of a leadership challenge".
After private polling for the Tories suggested a Johnson leadership could kill off Ruth Davidson's bid to become First Minister in 2021, Mr Mundell declared: "What is a fact is that Mr Johnson is not an asset for the Scottish Conservative Party". May's plan during a speech to around 1,500 party members.