There aren’t many people around Westminster predicting anything other than Liz Truss being named the new prime minister.
Even Rishi Sunak’s closest allies talk of him not losing by much, rather than winning.
If Ms Truss is named the victor just before lunchtime, one issue will define her early weeks in power: the cost of living.
She is planning a significant intervention this week, where tens of billions of pounds will be committed to helping with rising bills and inflation. That will include tax cuts and help for families and businesses. Expect her to also talk about an energy strategy to protect the UK against further turbulence in years to come.
After weeks of talking to Conservative members, the new prime minister will have to start talking to the country immediately. And the stakes are high, for voters are worried about their bills most of all. But also for the Conservative Party, worried about its future.
As one senior Tory put it to me last night: “If we get energy right, Starmer is beatable. If we don’t, we’re out.”
On Sunday the foreign secretary declined to say whether further help would be universal or targeted at the most needy, saying she would need time in office to iron out the details of her plan.
She admitted unpicking the National Insurance rise would benefit higher earners more, but said it was justified because it would boost the economy overall.
Speaking to the BBC’s Laura Kuenssberg, she blamed a focus on distributing wealth through taxes for low economic growth over the past two decades.
Labour, the Liberal Democrats and the SNP have all called on the government to freeze energy prices through multi-billion pound subsidies, while the Greens have suggested nationalising the UK’s five biggest suppliers.
Ms Truss did not rule out a freeze on Sunday but has previously described the idea as a “sticking plaster” and argues more needs to be done to help the UK boost its domestic sources of energy.
She said any further support would have to go “hand in hand” with efforts to boost nuclear energy, fracking for shale gas and more oil and gas drilling in the North Sea.
As well as tax cuts, Ms Truss has pledged to deliver low-regulation investment zones and bring about the biggest increase in defence spending in decades.
She abandoned a plan to link public sector pay to local living costs, however, after a backlash from unions, Labour and some Tories.
The seven-week leadership contest brings to an end Mr Johnson’s turbulent three years in office, and has seen the candidates regularly attack each other’s policies as well as the Tories’ record in government.
Mr Johnson was forced out in July by a ministerial revolt over a string of scandals, just over two-and-a-half years after leading the Tories to a landslide victory at the 2019 election.
The original field of 11 contenders was whittled down to two in a series of Tory MP ballots, with the final pair going into a run-off to be decided by the membership, which stands at about 160,000.
Although Mr Sunak had the most support among Tory MPs, he has trailed Ms Truss in opinion polls of the party grassroots.
Mr Johnson is expected to deliver a farewell speech upon leaving office on Tuesday, before the handover of power takes place.
In a break with tradition, the next Tory leader will travel to Balmoral Castle in Scotland to be appointed by the Queen, rather than at Buckingham Palace.
The Queen has been suffering from mobility issues and it is understood the change announced last week was made to prevent the need for any last-minute rearrangements.