From 27m agoMandelson files won't be published until June, and will be biggest release of documents since Chilcot inquiry, MPs toldDarren Jones, the chief secretary to the PM, is responding to the UQ about the Mandelson files. (See 11.42am.)He says the government is complying with the humble address requiring the publication of documents relating to Peter Mandelson’s appointment as ambassador to the US, and also his communications as ambassador with ministers and officials.He says that the government has referred more than 300 documents to the intelligence and security committee for vetting. (The committee, not the government, gets to decide what material will be withheld on th grounds that it could prejudice national security or international relations.)He says, when the government checked, it realised that “a small number of further documents” had not been handed over. But those have now been given to the ISC, as it said in its statement on Friday.He says the material is now being prepared for publication. He says this will be “one of the largest government publications ever laid in this house”.He says, given the volume of material, it will be published after the Whitsun recess (ie, after the Commons returns from the half-term recess on Monday 1 June).He says: