Liz Truss appears to have ruled out an early general election - by claiming there will be a “great victory" for the Conservative Party in 2024 at the ballot box.
In her first speech as the Tories' new leader, Ms Truss also heaped praise on the outgoing prime minister Boris Johnson, for defeating Jeremy Corbyn in 2019 and delivering Brexit.
The foreign secretary's victory was secured by the tightest margin in Tory history since current rules - forcing a vote by members - were introduced in 1998 by the party's executive.
She scored 57% compared to 66% Boris Johnson, 68 per cent for David Cameron and 61 per cent for Iain Duncan Smith. Theresa May was anointed after her rival in 2016, Andrea Leadsom, dropped out of the contest.
Addressing the party faithful at the coronation event on Monday at the Queen Elizabeth Centre, Ms Truss promised to "deliver a great victory for the Conservative Party in 2024".
She said: "My friends, we need to show that we will deliver over the next two years.
"I will deliver a bold plan to cut taxes and grow our economy. I will deliver on the energy crisis, dealing with people's energy bills, but also dealing with the long-term."
The comment appears to rule out the prospect of an early general election, after the Labour leader Sir Keir Starmer challenged whoever won the Tory contest to go to the country.
Mr Johnson and his predecessor Ms May also rejected pressure for an early general election before entering No 10 - but both reneged on their commitments not to seek a snap election.
Taking to the stage at the Queen Elizabeth Centre in central London, Ms Truss said she "campaigned as a Conservative and I will govern as a Conservative".
"I will deliver a bold plan to cut taxes and grow our economy," she insisted after promising to reverse a hike in national insurance and scrapping a corporation tax rise.
Addressing her predecessor as Tory leader, she added: "I also want to thank our outgoing leader, my friend, Boris Johnson. Boris, you got Brexit done. You crushed Jeremy Corbyn.
"You rolled out the vaccine and you stood up to Vladimir Putin. You are admired from Kyiv to Carlisle," she claimed.
After defeating rival Rishi Sunak, the former chancellor, in the final run-off of Tory members Ms Truss said: "I'd like to pay tribute to my fellow candidates, particularly Rishi Sunak.
"It's been a hard-fought campaign. I think we have shown the depth and breadth of talent in our Conservative Party."
Responding to her victory, Keir Starmer, the Labour leader, posted on social media: "I'd like to congratulate our next prime minister Liz Truss as she prepares for office.
"But after 12 years of the Tories all we have to show for it is low wages, high prices, and a Tory cost-of-living crisis. Only Labour can deliver the fresh start our country needs".
