"I'll be sitting in this position by 2027," Starmer stated, adding that if our conversation proceeded smoothly, he might welcome us into Downing Street for a follow-up talk next year.
There is never truly break for those in the top job. Just an hour before we sat down, Starmer had been in calls with Ukraine's Volodymyr Zelensky and working to decipher exactly what had occurred in Venezuela, where his close ally, US President Donald Trump, had recently launched a strike against and detained its leader, Nicolás Maduro.
When our interview, which was much longer than normal, had ended, Maduro had been formally accused in New York.
With the year starts, the Prime Minister appears to have had a kind of a reboot. Maybe even just some downtime with loved ones at Chequers, the prime minister's official country residence.
That certainly appeared to have put him in improved morale than at the difficult end of 2025, a terrible annus horribilis for him.
Yet, are he and his colleagues kidding themselves if they reckon his standing are poised to improve?
The grisly truth for the prime minister is that numerous of his party members think he's underperforming at his job. Some of them would sooner take a risk and oust him this year.
However Sir Keir was rejecting the idea during our conversation on Saturday morning.
Multiple times he stated he'd be "assessed at the general election", arguing no one would remove his term from him – despite the fact that the most effective strategy of halting Nigel Farage and Reform UK reaching No 10 might be for Labour to switch its leader.
"This is the battle of our times and I intend to lead us," he declared.
The issue for the PM is that he will be judged far sooner than then – in a huge set of elections in May throughout the UK. He sought to protest, maybe too much, that they are about who runs local authorities, and who runs the governments in Holyrood or Cardiff – and not about Westminster.
Accurate – 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 stating that there were no situation under which he would walk away, even if one of his colleagues challenged him for the job, should those elections prove disastrous for Labour.
He sought to explain his unpopularity by saying the voters was naturally anxious for things to improve. He aimed to persuade me, and the nation, that 2026 would be different.
The economic situation would strengthen notwithstanding rising unemployment, he argued, when strategies the government put in place during their first rocky year began to take effect.
His big message is that soon the country will "turn the corner".
The PM may have spoken with greater vigour than I've seen from him for a some time – calmer, perhaps, with a longer slot to talk.
However, in spite of encountering pressure from various quarters for a bolder approach, with greater political clarity, more vigour, more pace and more urgency, his explanations were well-known ones.
Given that he is in such significant political difficulty, is a different approach required a change of tack?
No government, and especially not one that has been struggling in the polls for many months, gets everything its as planned.
Sir Keir's problems are not only because governing is difficult, but because he and his team have erred, including in the last few weeks.
The prime minister told me that he regretted saying he was "delighted" to welcome back the Egyptian-British activist Alaa Abd El Fattah to the UK after an backlash when statements he'd made in the past – such as calls for Zionists and police to be killed – came to light.
Starmer blamed "the process" for not realising what the activist had said before – a more diplomatic way of saying it wasn't his responsibility.
And he is facing obvious political risks as the year progresses. His alliance with the US president entails a new complication after Trump's intervention 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 these events seems unlikely.
He stated he was a "lifelong champion of international law" but we "just haven't got the entire story at the moment".
Opponents demanded condemn it prior to the interview. And the administration is expected to face increased demands to give an definitive view in Parliament in the coming days.
And there has always been simmering pressure in the Labour ranks to undo or remake some of the outcomes of Brexit.
Sir Keir denies he's heading in that direction, but his new firmer plan to integrate further with the EU's single market – the huge economic European trading zone – will likely trigger accusations that he is going back on his promise never to try to overturn the results that followed Brexit.
A move to align with more of the single market will satisfy some on his own side, but it is prime ammunition for Reform and the Conservatives to
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