Cabinet Secretary Simon Case has been urged to launch an independent probe into claims Boris Johnson tried to secure plum jobs for wife Carrie.
Labour called for an investigation, after the Mirror revealed claims this week that Mr Johnson had talked to Downing Street aides about getting jobs for Mrs Johnson.
And it follows allegations he tried to make her his £100,000-a-year chief of staff two years earlier, when he was Foreign Secretary and she was his girlfriend.
