Morgan McSweeney, Sir Keir Starmer's former chief of staff, admitted in a BBC interview that the Labour Party failed to properly prepare for government before its general election victory.
He said the party did not sufficiently analyze how the global political landscape had shifted since Labour last held office in the 1990s, leading to early operational difficulties.
McSweeney explained that internal expectations before the 2024 vote assumed the party would need two election cycles to recover from its 2019 defeat, leaving many officials planning for a loss rather than a victory.
"We didn't prepare enough for what kind of world we were going to.
We are now in a very different era than when Labour was last in government," he stated.
He expressed that leadership figures did not adequately discuss the implications of these global shifts on state governance.
"I think we didn't have enough conversations at the top of the party about what that meant, how to prepare for it, what that meant for the state," McSweeney said.
McSweeney noted that the administration struggled to enact rapid visible changes for the electorate.
"You have to deliver quite quickly for people, for them to see the change quickly.
And I think we didn't come in with enough of a theory about how we would do that," he said.
Reflecting on specific policy choices, he identified the early restriction of winter fuel payments as a damaging error that defined the government poorly, though he defended the principle of means-testing.
He also noted that controversies regarding donor-funded gifts for ministers negatively impacted the party, suggesting such expenditures should have emerged from campaign budgets instead.
Newly disclosed internal documents obtained by Jeremy Corbyn via a subject access request revealed that Labour Together, under McSweeney's direction from 2017 to 2020, actively monitored party membership views on antisemitism through YouGov polling while placing strategic media stories.
The documents showed that a November 2018 poll found 76% of surveyed members believed the antisemitism crisis was exaggerated or hyped, a figure that sat at 71% in July 2019.
In an email, McSweeney wrote that Corbyn's absolute support numbers remained high despite his handling of Brexit and antisemitism.
"Corbyn's absolute numbers are still very high (68%) particularly given his dreadful performance on Brexit and antisemitism," he wrote.
The internal records also highlighted that Labour Together viewed the independent media outlet The Canary as a political challenge due to its high trust rating among Corbyn supporters, subsequently targeting it with an advertising boycott via the Stop Funding Fake News campaign.
Regarding the current leadership transition, McSweeney endorsed Andy Burnham as the correct choice to succeed Starmer, noting that having top government figures living entirely outside London would benefit the administration.
"If at the top of government there are people who don't just have a desk somewhere outside London but actually live their whole lives outside of London, I think that will be a good thing," he said.
He dismissed potential logistical hurdles regarding a non-London centric leadership layout.
"A lot of people won't like it. I think it's a good idea.
I think he should just push it through, the logistics can be sorted out," McSweeney said.
He concluded by stating that he plans to remain entirely out of British politics for the next few years to pursue a different professional direction.
Former shadow chancellor John McDonnell stated that the newly revealed internal documents from Labour Together make the justification for a public inquiry overwhelming.
