"I will remain in the same position by 2027," Starmer declared, noting that if our discussion proceeded smoothly, he might welcome us into Number 10 for another chat in 2026.
There is rarely ever break for those in the top job. In the hour before the interview began, Sir Keir had been in calls with Ukrainian President Volodymyr Zelensky and working to understand what on earth had occurred in Venezuela, where his close ally, US President Donald Trump, had recently attacked and captured its leader, Nicolás Maduro.
Once our lengthy talk, which was considerably lengthier than normal, had concluded, Maduro had been charged in New York.
With the new year begins, Sir Keir seems to have had a kind of a revitalisation. Maybe even just some a rest with his family at Chequers, the prime minister's rural getaway.
This appeared to have resulted in better spirits than at the saggy conclusion of 2025, a awful year politically for him.
Yet, are he and his colleagues kidding themselves if they think his standing are about to get better?
The grisly truth for the PM is that numerous of his colleagues believe he's ineffective at his job. Some of them would rather gamble and get him out this year.
However Sir Keir was dismissing such talk when we spoke on Saturday morning.
Multiple times he stated he'd be "assessed at the poll", insisting nobody would remove his term from him – even if the optimal path of preventing Nigel Farage and Reform UK reaching No 10 might be for Labour to change its leader.
"This is the battle of our generation and I plan to lead us," he declared.
The problem for the prime minister is that he will be scrutinised well ahead of then – in a major set of elections in May throughout the UK. He attempted to protest, maybe too much, that they are about who runs local authorities, and who runs the governments in Holyrood or Cardiff – and unrelated to Westminster.
True – up to a point. But although he may not want to admit it, No 10 will be evaluated by those elections too.
Despite this, Sir Keir suggesting that there were no situation under which he would walk away, should a his colleagues challenged him for the job, should those elections be very poor for Labour.
He sought to account for his unpopularity by saying the voters was understandably anxious for things to change. He aimed to assure me, and the public, that this year would be a change.
The economy would recover notwithstanding rising unemployment, he said, when plans the administration implemented during their first choppy year began to show results.
His core argument is that in 2026 the country will "see an improvement".
The prime minister may have communicated with greater vigour than observed from him for a while – less tense, perhaps, with more time to talk.
But despite encountering pressure from within his own party for a more decisive strategy, with increased political vision, more dynamism, more pace and more urgency, his explanations were familiar ones.
Given that he is in this much political difficulty, does he need a change of tack?
No government, and certainly not one that has been unpopular for an extended period, has everything its own way.
Sir Keir's challenges are not only because government is challenging, but because he and his team have faltered, even in the recent past.
The prime minister admitted that he was sorry for saying he was "happy" to welcome back the Egyptian-British activist Alaa Abd El Fattah to the UK after an controversy when statements he'd made in the past – including calls for Zionists and police to be killed – resurfaced.
Starmer blamed "the process" for not catching what the activist had said before – a more diplomatic way of saying not my fault.
And he is inviting evident political dangers as the year progresses. His close relationship with the US president entails a new jeopardy after Trump's strikes on Venezuela.
Having interviewed Sir Keir Starmer, a former human rights lawyer who opposed the war in Iraq, over many years, the idea he would be comfortable with such action seems unlikely.
He stated he was a "lifelong advocate of international law" but we "just lack the entire story at the moment".
Opponents wanted him to condemn it before the interview. And the government is expected to face further scrutiny to give an explicit view in Parliament in the near future.
There has also always been growing desire in the Labour ranks to revisit some of the results of Brexit.
Sir Keir rejects he's heading in that direction, but his new specific pledge to move closer with the European trading bloc – the giant economic European trading zone – will probably provoke howls that he is breaking his vow never to try to overturn the decisions that followed Brexit.
A commitment to cosy up to more of the single market will delight a faction on his own side, but it is prime ammunition for Reform and the Conservatives to
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