Ministers braced as Mandelson document release will expose government working

Here is the latest breaking news from around the world: Ministers braced as Mandelson document release will expose government working19 minutes ago Share Save Add as preferred on GoogleChris Mason ,Political editorandHenry Zeffman ,Chief political correspondentPA MediaThe appointment of Peter Mandelson as the UK's ambassador to Washington is like a bad news boomerang for the government. Over and over again the prime minister's most consequential judgement in office circles back into ministers' airspace – and today it will do with gusto. It will be "another one of those weeks" one senior figure said, wearily.

The scale of what is to come will be quite something: the largest government publication ever put before the Commons, and therefore us, other than the Chilcot Inquiry into the Iraq War – and that was a 12 volume, 2. 6 million word affair. It won't be on that scale, but it will run to over 1,000 pages.

The Details

The first tranche, back in March, amounted to 147 pages. Printed and bound, the publication will be made up of three volumes. More than 160 of the pages are made up of Lord Mandelson's text messages and WhatsApps.

The bundle will include a substantial explanation from the government of how much effort it took for officials to collate all the information parliament required the government to release, describing it as thousands of hours of work from officials. In big picture terms, the documents will offer a fascinating internal insight, at scale, into how government works: the private interactions, information flows and disagreements. Those with an understanding of how the embassy in Washington works describe it as being almost like a government department itself in size – and, crucially, with connections to so many aspects of the Whitehall government machine, given the importance of the UK-US relationship.

This is particularly true on military and intelligence matters, much of which will likely be redacted from this document drop on national security grounds. But what could it tell us about arguments relating to defence spending, or the row about the Chagos Islands for instance? Folk in government are braced for the inevitable awkwardness of exchanges that they had assumed at the time would be forever private being catapulted into the light of day.

What Experts Say

Many of the messages are expected to reflect the reality that, at the time, Lord Mandelson was seen as one of the most influential powerbrokers in the Labour Party. "Excruciating", "sycophantic" and "cringeworthy" are the words being used to describe some of them. The very human tone and tenor of messages – particularly on WhatsApp where text is so often a substitute for in the moment verbal conversation – is likely to stand out.

Who is Peter Mandelson? A 'weirdly rushed' appointment - and other key takeaways from Mandelson filesKey points from Starmer's Mandelson statementWe understand a good number of cabinet ministers were lavish in their praise of Lord Mandelson immediately after he was sacked.

The story has become one of the most prominent items on the global agenda.