David Cameron and Nick Clegg are set to publish a dossier that will show the coalition has missed 70 election pledges, The Daily Telegraph has reported.
The Deputy Prime Minister last month promised a "candid" assessment of the government's performance but this did not appear in the coalition's mid-term review on Monday.
The existence of the dossier only came to light when one of Mr Cameron's senior advisors was photographed in Downing Street carrying a document discussing the advantages and disadvantages of releasing it, the newspaper said.
The new document is understood to go through every one of the 399 promises in the Coalition agreement to update the public on the progress that has been made.
Touted as a 'full, frank and unvarnished' assessment of the Coalition's progress, today's mid-term review has been dismissed by Labour.
The Coalition has published a 119-page report showing the progress made on the 399 pledges taken together in 2010. Not an easy read.