"I'll be sitting in this position by 2027," Starmer remarked, joking that if our interview was successful, he might invite us into Downing Street for another talk in 2026.
For a PM, there's rarely ever break for leaders. Just an hour before our chat started, Sir Keir had been speaking with Ukrainian President Volodymyr Zelensky and trying to work out what on earth had transpired in Venezuela, where his close ally, US President Donald Trump, had recently launched a strike against and detained its leader, Nicolás Maduro.
When our lengthy talk, which was far more extended than typical, had ended, Maduro had been indicted in New York.
But as the year starts, the Prime Minister appears to have had a kind of a refresh. Maybe even just a little a rest with the family at Chequers, the prime minister's official country residence.
This appeared to have put him in a more positive mood than at the sluggish end of 2025, a awful year politically for him.
But are he and his supporters deluding themselves if they believe his standing are set to turn around?
The uncomfortable reality for the PM is that many of his party members think he's not very good at his job. Some of them would rather gamble and oust him sooner rather than later.
However Sir Keir was dismissing such talk in the interview on Saturday morning.
Multiple times he stated he'd be "judged at the poll", arguing no one would take his term from him – even if the best chance of halting Nigel Farage and Reform UK getting to No 10 might be for Labour to replace leader.
"We are in the fight of our lifetime and I plan to lead us," he affirmed.
The challenge for the prime minister is that he will be judged far sooner than then – in a mega set of elections in May throughout the UK. He tried to protest, perhaps too much, that they are concerning who runs councils, and who runs the devolved administrations in Holyrood or Cardiff – and not a verdict on Westminster.
True – in part. But even though 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 scenario under which he would step down, should one of his colleagues contested his leadership for the job, if those elections be very poor for Labour.
He tried to explain his low poll ratings by saying the voters was reasonably anxious for things to change. He aimed to convince the interviewer, and the public, that 2026 would be a change.
The economy would strengthen despite rising unemployment, he claimed, when plans the government implemented during their initial turbulent year began to show results.
His big argument is that this year the country will "reach a turning point".
The PM may have communicated with more energy than I've seen from him for a while – calmer, perhaps, with more time to talk.
However, in spite of encountering demands from within his own party for a bolder approach, with increased political vision, more dynamism, more pace and more urgency, his explanations were repeated ones.
Given that he is in this much political difficulty, is a different approach required a change of tack?
No administration, and especially not one that has been struggling in the polls for an extended period, gets everything its as planned.
The Prime Minister's problems are not only because government is hard, but because he and his colleagues have made mistakes, even in the last few weeks.
The prime minister admitted that he regretted saying he was "delighted" to see the return of the Egyptian-British activist Alaa Abd El Fattah to the UK following an outcry when past remarks he'd previously made – such as calls for Zionists and police to be killed – came to light.
Sir Keir attributed it to "the process" for not catching what the activist had said before – a fancier way of saying it wasn't his responsibility.
And he is courting obvious political risks as the year progresses. His friendship with the US president takes on a new risk after Trump's military action on Venezuela.
Having interviewed Sir Keir Starmer, a ex- human rights lawyer who opposed the war in Iraq, over his career, the thought he would be content with this kind of intervention seems far-fetched.
He asserted he was a "career-long champion of international law" but the public "just do not have the complete details at the moment".
Some demanded condemn it prior to we spoke. And the government is likely to face further scrutiny to give an explicit view in Parliament in the near future.
There has also consistently been growing desire in the Labour party to revisit some of the consequences of Brexit.
Sir Keir disputes he's pursuing that, but his new specific plan to align more closely with the EU's single market – the giant economic European trading zone – will probably provoke protests that he is breaking his vow never to try to undo the choices that stemmed from Brexit.
A commitment to cosy up to more of the single market will satisfy some on his side of the party, but it is easy fodder for Reform and the Conservatives to
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