Bill Crothers bypassed appointments watchdog and was still a top civil servant when he took the post in 2015.
Or could the chancellor emerge from the row stronger?
City lawyer Nigel Boardman will lead the review, which the PM wants to report 'promptly'
Accusations of “Tory cronyism” as chancellor “pushed” officials to explore plan to aid firm the ex-PM was working for.
The former PM has not commented publicly over any of the claims that have appeared in recent weeks.
An investigation by the Sunday Times alleged that Lex Greensill enriched himself through a government-backed loan scheme.
Former prime minister said government made "mistake" of focusing on influenza rather than respiratory illnesses.
Trotters. Milkshakes. So many pictures of, and with, fish.
Vaccine rollout is just the first step in tackling structural problems laid bare by the virus.
In his book A Promised Land, the former president discusses David Cameron, Gordon Brown and that incident with the Queen.
About David Cameron
David Cameron took office in 2010 after forming a coalition government with Nick Clegg. He has since seen the popularity of his party fall as well as internal rebellions against the alliance with the Lib Dems.