Dominic Cummings is set to be interviewed by Whitehall enforcer Sue Gray over his explosive party claims, it is understood.
She is said to believe that for her inquiry to be seen as credible she has to speak to all key witnesses.
It is currently unclear whether she has already been in touch with Cummings, but Ms Gray plans to do so be before publishing her findings into Downing Street gatherings, Mirror Online understands.
