"I'll remain in the same position by 2027," Starmer stated, joking that if the conversation was successful, he might invite us into his official residence for another conversation in the coming year.
There is never any break for prime ministers. Just an hour before the interview began, Sir Keir had been speaking with Ukrainian President Volodymyr Zelensky and trying to understand precisely had occurred in Venezuela, where his close political chum, US President Donald Trump, had just launched a strike against and detained its leader, Nicolás Maduro.
Once the discussion, which was much longer than typical, had ended, Maduro had been indicted in New York.
As the new year begins, the Prime Minister seems to have had a degree of a reboot. Maybe even just some relaxation with the family at Chequers, the prime minister's rural getaway.
That certainly appeared to have put him in a more positive mood than at the saggy conclusion of 2025, a terrible political year for him.
But are he and his colleagues deluding themselves if they believe his standing are about to turn around?
The uncomfortable truth for the prime minister is that numerous of his colleagues believe he's ineffective at his job. A faction of them would rather gamble and oust him in 2026.
But Starmer was rejecting the idea when we spoke on Saturday morning.
Multiple times he insisted he'd be "judged at the general election", arguing nobody would take his term from him – even if the best chance of halting Nigel Farage and Reform UK entering No 10 may be for Labour to replace leader.
"This is the fight of our lifetime and I plan to lead us," he said.
The challenge for the PM is that he will be scrutinised long before then – in a mega set of elections in May throughout the UK. He attempted to argue, maybe excessively, that they are about who runs local authorities, and who runs the devolved administrations in Holyrood or Cardiff – and not a verdict on Westminster.
True – in part. But although he may be reluctant to concede it, No 10 will be judged by those elections too.
Despite this, Sir Keir stating that there were no circumstances under which he would step down, should a his colleagues contested his leadership for the job, if those elections prove disastrous for Labour.
He attempted to account for his unpopularity by saying the voters was reasonably impatient for things to improve. He sought to persuade the interviewer, and the nation, that this year would be different.
The economic situation would recover despite rising unemployment, he argued, when strategies the administration implemented during their initial choppy year began to take effect.
His big point 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 some time – less tense, maybe, with more time to talk.
However, in spite of facing demands from various quarters for a more decisive strategy, with increased political clarity, more urgency, more speed and more immediacy, his arguments were repeated ones.
When he finds himself in this much political trouble, does he need a change of tack?
No administration, and especially not one that has been unpopular for an extended period, has everything its own way.
Sir Keir's challenges are not just because governing is hard, but because he and his team have erred, even in the last few weeks.
The prime minister told me that he was sorry for saying he was "delighted" to welcome back the Egyptian-British activist Alaa Abd El Fattah to the UK after an backlash when comments he'd made in the past – including calls for Zionists and police to be killed – surfaced.
Starmer blamed "procedures" for not catching what the activist had said before – a fancier way of saying not my fault.
And he is courting obvious political perils as the year unfolds. His friendship with the US president takes on a new jeopardy after Trump's military action on Venezuela.
Having interviewed Sir Keir Starmer, a former human rights lawyer who opposed the war in Iraq, over his career, the notion he would be comfortable with this kind of intervention seems unlikely.
He asserted he was a "career-long advocate of international law" but the public "simply do not have the entire story at the moment".
Some demanded denounce it before we spoke. And the government is likely to face increased demands to give an clear view in Parliament in the next few days.
And there has long been bubbling pressure in the Labour ranks to revisit some of the consequences of Brexit.
The PM disputes he's pursuing that, but his new more concrete plan to integrate further with the EU's single market – the giant economic European market – will likely provoke protests that he is breaking his promise never to try to reverse the decisions that stemmed from Brexit.
A decision to align with more of the single market will please a faction on his own side, but it is prime ammunition for Reform and the Conservatives to
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