The leaking of a party's manifesto in full is unprecedented in political history.
Today’s leak was not in the (official) grid, but voters now have the chance to unpick Jeremy Corbyn's plan for Britain days before he intended to publish it (and hours before it was meant to be signed off by the Party’s democratic processes).
The leaking has probably pre-empted any major changes. Labour will be keen to avoid any headlines about its leader being forced to back down by his party. Except for some minor changes, this is likely to be the document that is signed off later today at Labour's Clause V meeting. So, what does it tell us about the party's plan for health and social care?
Firstly, on funding, the party has sought to learn the lesson of the last election and make a big spending commitment. £6 billion extra to the NHS a year, funded through taxes on the wealthy.
Extra money for the NHS was set to be Labour's big announcement early next week. Many Labour staffers will be frustrated that this leak has spiked that day's story. But, NHS funding will have its day in the sun and the announcement will shine a light on the Tories’ own spending plans for the NHS, and particularly their proposed cut in spending per head in 2018-19.
Like many of the other policy areas, the party's health plans are a wish list designed to appeal directly to voters and respond to the concerns raised by charities about standards in the NHS.
These are not meant to be bold, radical or even far-reaching policies, but rather retail-friendly ideas that can translate into headlines, fit on a leaflet and respond to the issues people say they care about: an end (again) to mixed-sex wards, a clampdown on unfair rationing and a promise to take one million people off hospital waiting lists.
Rather than sounding like a left-wing plan from the 1970s many of these ideas reflect - in presentation at least - Labour's 1997 promises on the NHS, although the environment in which they must be communicated is clearly very different.
Ed Miliband has had a resurgence in the last week after Theresa May announced her plans to keep energy bills down, and there are further echoes of his manifesto in today's leak with the legal duty on excess private profits in the NHS and repealing the 2012 Act. Andy Burnham will also be pleased that his long campaign for a National Care Service remains alive, although the details of how it will be achieved remain vague.
Over the coming hours and days there will be lots of speculation about who leaked the manifesto and for what purpose. Jeremy Corbyn's team had a lot to gain from an extra day of stories about the content of the manifesto and today's leak has reignited the internal divides within the party.
Whatever the outcome of this spat, the leadership now has more time to sell this plan to the country and to try, at least in some part, to reverse the party's fortunes. However, they will need to do so amidst headlines about campaign chaos which threaten to drown out policy commitments.