iz Truss will lay out her pitch to become prime minister with a pledge to “in a Conservative way” and lower taxes.
The Minister of Foreign Affairs has the support of Boris Johnson’s remaining loyalists in the Tory leadership race to select his successor.
She secured her place in the next round of the contest by taking the third-highest number of votes in Tory’s first ballot MPs on Wednesday, behind rivals Rishi Sunak and Penny Mordaunt.
Ms Truss’ backers have been accused of campaigning to damage Mr Sunak’s chances in the contest, criticizing the former chancellor’s “economically damaging” policies.
I have a plan to make Britain a fast-growing economy through bold supply-side reforms
In a campaign speech on Thursday, Ms Truss will outline her economic plan, which includes reversing the April hike in national insurance, cutting corporate taxes and implementing supply-side reforms.
She is expected to say: “My mission is to make our country an aspiration nation, where every child, every person has the best chance of success.
“I have a plan to make Britain a fast-growing economy through bold supply-side reforms.”
The South West Norfolk MP will also refer to her education at a northern high school, where she saw children “failed” because of “low expectations”.
“They will never again be abandoned on my watch.
“Everyone in our great country should be born with the same opportunities and know that the city they were born in has opportunities.”
“My mission in politics is to give every child, every person the best chance of success, and to make their success in life depend solely on their hard work and talents, not on their background or where they come from. “
Despite being a loyalist to Johnson, Mrs. Truss kept her powder dry as the Tory toppers targeted the mortally wounded Prime Minister last week, though she cut short an overseas trip to Indonesia to return to Westminster when he announced his resignation.
She confirmed the long-held expectation that she would throw her hat into the already crowded ring on Sunday.
The 46-year-old has made little secret of her leadership ambitions, with a series of high-profile interventions and photo opportunities in which she appeared to channel the late Prime Minister Margaret Thatcher.
The former-Remainer-turned-fervent Brexiter’s hard line against Ukraine, which urges Russian troops to be expelled from the country, and threats to tear up parts of the Northern Ireland Protocol with the EU are playing good parts of the party.
After Wednesday’s vote, a spokeswoman for Ms Truss said she has “the experience to reap the benefits of Brexit from day one, grow our economy and support working families”.
Chief Secretary to the Treasury Simon Clarke urged other Tory MPs to rally behind her “free market vision”.
In her speech, Ms. Truss will highlight her experience, having worked in many departments in Whitehall, and her drive to unite the party.
“I am ready to become prime minister on day one. I can lead, make difficult decisions and stand up for the moment,” she is expected.
“The British people are crying out for a united and modern Conservative government ready with the courage of its convictions to deliver on its promises.”