Sky News host and newspaper columnist Peta Credlin has a swag of awards for journalism, a prime time nightly TV show and occupies significant real estate in the Murdoch press twice a week.

In addition to her various platforms, according to evidence heard in the federal court, Credlin has also been described as a “Liberal party mentor”, dispensing advice from the sidelines.

Ousted Liberal MP Moira Deeming told the defamation trial she brought against the Victorian opposition leader, John Pesutto, that she has kept Credlin “in the loop, in general, at all times”.