"I will be positioned in this seat by 2027," Starmer remarked, noting that if the conversation went well, he might welcome us into his official residence for another conversation in 2026.
There is never any downtime for those in the top job. Shortly before the interview began, Sir Keir had been in calls with Ukraine's Volodymyr Zelensky and trying to work out what on earth had occurred in Venezuela, where his key friend, US President Donald Trump, had just targeted and seized its leader, Nicolás Maduro.
When the discussion, which was far more extended than usual, had ended, Maduro had been charged in New York.
But as the new year begins, the Prime Minister appears to have had something of a revitalisation. Perhaps even just a bit of relaxation with the family at Chequers, the prime minister's official country residence.
This appeared to have put him in improved morale than at the saggy tail end of 2025, a terrible political year for him.
But are he and his allies being unrealistic if they think his political fate are set to get better?
The uncomfortable reality for the prime minister is that many of his colleagues believe he's ineffective at his job. Several of them would rather gamble and get him out sooner rather than later.
But Sir Keir was dismissing such talk in the interview on Saturday morning.
Multiple times he insisted he'd be "assessed at the next election", arguing no one would take his electoral mandate from him – even if the most effective strategy of halting Nigel Farage and Reform UK entering No 10 could be for Labour to switch its leader.
"This is the battle of our times and I plan to be at the forefront," he said.
The challenge for the PM is that he will be scrutinised well ahead of then – in a mega set of elections in May across the UK. He tried to contend, maybe excessively, that they are concerning who runs councils, and who runs the governments in Holyrood or Cardiff – and not about Westminster.
Accurate – up to a point. But although he may be reluctant to concede it, No 10 will be judged by those elections too.
Despite this, Sir Keir implying that there were no scenario under which he would walk away, should one of his colleagues ran against him for the job, if those elections prove very poor for Labour.
He sought to explain his low poll ratings by saying the public was understandably impatient for things to change. He sought to convince me, and the nation, that the coming months would be distinct.
The economy would strengthen despite rising unemployment, he claimed, when plans the administration put in place during their initial turbulent year began to bear fruit.
His big point is that this year the country will "turn the corner".
The prime minister may have communicated with more energy than I've seen from him for a some time – more relaxed, maybe, with a longer slot to talk.
However, in spite of encountering calls from various quarters for a bolder approach, with increased political direction, more vigour, more speed and more urgency, his explanations were repeated ones.
When he finds himself in this much political trouble, should he consider a different script?
No administration, and certainly not one that has been unpopular for many months, gets everything its as planned.
Sir Keir's challenges are not just because government is difficult, but because he and his team have made mistakes, even in the last few weeks.
The prime minister admitted that he was sorry for saying he was "delighted" to see the return of the Egyptian-British activist Alaa Abd El Fattah to the UK after an controversy 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 catching what the activist had said before – a more diplomatic way of saying it wasn't his responsibility.
And he is courting clear political dangers as the year progresses. His alliance with the US president acquires a new jeopardy after Trump's intervention on Venezuela.
Having interviewed Sir Keir Starmer, a former human rights lawyer who opposed the war in Iraq, over many years, the notion he would be comfortable with this kind of intervention seems implausible.
He stated he was a "career-long champion of international law" but the public "simply lack the entire story at the moment".
Critics called for him to criticise the action prior to we spoke. And the government is likely to face more pressure to give an clear view in Parliament in the coming days.
There has also consistently been bubbling pressure in the Labour party to undo or remake some of the outcomes of Brexit.
The PM denies he's doing that, but his new firmer plan to move closer with the EU's single market – the giant economic European trading zone – will probably elicit howls that he is reneging on his vow never to try to reverse the decisions that flowed from Brexit.
A commitment to cosy up to more of the single market will delight some on his side of the party, but it is easy fodder for Reform and the Conservatives to
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