This person told Deadline that Gibb campaigned for his preferred candidate to become Ofcom chair.
Gibb worked as Mays communications director, so he and Gilbert shared a connection with Britains former leader.
We ignored it and I tried to keep them apart, the source said.
Nadine Dorries and Robbie GibbGetty
Dorries ultimately installed Grade at Ofcom, but the allegations have raised questions over whether Gibb behaved improperly.
Gibb did not respond to Deadlines request for comment and has previously failed to deny Dorries allegations.
The Department for Digital, Culture, Media & Sport (DCMS) declined to comment.
The BBC pointed to previous statements on the matter.
She failed to deny that Gibb had intervened in the Ofcom role.
Labour MP Kevin Brennan said it would be utterly inappropriate if Gibb had intervened in the Ofcom hiring process.
Shah said he would not prejudge the matter before he has had an opportunity to review the evidence.
This is not the first time Gibb has been accused of interfering in a hiring process.
Brammar eventually landed the role, but recently moved to the BBCs television unit as an editorial executive.
