"I'll remain in the same office by 2027," Starmer stated, noting that if our conversation went well, he might welcome the interviewer into his official residence for another conversation next year.
There is rarely ever break for prime ministers. In the hour before we sat down, Sir Keir had been speaking with Ukrainian President Volodymyr Zelensky and attempting to work out precisely had transpired in Venezuela, where his key political chum, US President Donald Trump, had just targeted and seized its leader, Nicolás Maduro.
Once our lengthy talk, which was far more extended than usual, had ended, Maduro had been charged in New York.
With the year commences, the Prime Minister seems to have had a kind of a revitalisation. Maybe even just some a rest with his family at Chequers, the prime minister's official country residence.
This seemed to have resulted in a more positive mood than at the sluggish end of 2025, a awful annus horribilis for him.
But are he and his supporters kidding themselves if they reckon his political fate are poised to turn around?
The grisly reality for the prime minister is that a significant number of his party members believe he's underperforming at his job. A faction of them would sooner take a risk and get him out sooner rather than later.
But Sir Keir was having none of it in the interview on Saturday morning.
Repeatedly he stated he'd be "judged at the general election", arguing no one would take his five-year mandate from him – despite the fact that the best chance of halting Nigel Farage and Reform UK reaching No 10 could be for Labour to replace leader.
"We are in the battle of our lifetime and I aim to lead us," he declared.
The issue for the prime minister is that he will be assessed well ahead of then – in a mega set of elections in May throughout the UK. He sought to contend, maybe too much, that they are about who runs local authorities, and who runs the devolved administrations in Holyrood or Cardiff – and not about Westminster.
True – in part. But although he may be reluctant to admit it, No 10 will be evaluated by those elections too.
This did not stop Sir Keir implying that there were no circumstances under which he would resign, even if a his MPs challenged him for the job, if those elections be very poor for Labour.
He sought to rationalise his unpopularity by saying the electorate was understandably eager for things to change. He sought to assure me, and the nation, that 2026 would be different.
The economy would recover notwithstanding rising unemployment, he said, when plans the government enacted during their first choppy year began to show results.
His core message is that in 2026 the country will "reach a turning point".
The prime minister may have spoken with more energy than observed from him for a while – less tense, maybe, with more time to talk.
But despite encountering calls from various quarters for a more decisive strategy, with increased political clarity, more urgency, more speed and more immediacy, his explanations were repeated ones.
When he finds himself in this much political trouble, should he consider a new narrative?
No administration, and especially not one that has been struggling in the polls for an extended period, gets everything its as desired.
Sir Keir's problems are not just because governing is hard, but because he and his team have made mistakes, even in the recent past.
The prime minister admitted that he was sorry for saying he was "pleased" to see the return of the Egyptian-British activist Alaa Abd El Fattah to the UK after an backlash when statements he'd made in the past – including calls for Zionists and police to be killed – resurfaced.
Sir Keir attributed it to "the system" for not catching what the activist had said before – a fancier way of saying it wasn't his responsibility.
And he is inviting clear political dangers as the year unfolds. His alliance with the US president acquires a new complication after Trump's intervention on Venezuela.
Based on years of interviewing Sir Keir Starmer, a former human rights lawyer who was against the war in Iraq, over many years, the idea he would be comfortable with this kind of intervention seems unlikely.
He stated he was a "lifelong champion of international law" but we "just do not have the full picture at the moment".
Opponents demanded condemn it before the interview. And the government is expected to face further scrutiny to give an clear view in Parliament in the near future.
And there has long been bubbling desire in the Labour party to reverse or renegotiate some of the results of Brexit.
The PM rejects he's doing that, but his new firmer pledge to integrate further with the single market – the vast economic European market – will probably elicit protests that he is breaking his promise never to try to undo the choices that followed Brexit.
A commitment to integrate into more of the single market will satisfy many on his side of the party, but it is prime ammunition for Reform and the Conservatives to