ABC

Senior barrister Sue Chrysanthou has rejected claims that she has failed in her duties as a barrister by representing federal minister Christian Porter in his defamation proceedings against the ABC over coverage of rape allegations.

Christian Porter has won access to communications by the woman behind a challenge to his legal representation in a defamation case against the ABC, after telling a court it would be a “very big deal” if he lost his counsel.

Lawyers retained by former attorney-general Christian Porter have accused the ABC of making "improper" allegations against Porter's counsel, who is facing calls for her to return her brief to act for him in defamation proceedings against the national broadcaster.

Racing NSW CEO Peter V'landys AM has lost his defamation case against the ABC, with a judge rejected allegations a 7.30 segment, which revealed racehorses were being slaughtered in violation of industry rules, was defamatory.

A judge has temporarily adjourned former attorney-general Christian Porter's defamation lawsuit against the ABC over its coverage of historic rape allegations pending the outcome of a separate legal challenge over whether barrister Sue Chrysanthou SC can represent him in the case.

The woman bringing court action seeking to stop Christian Porter's senior barrister from acting for the former attorney-general in his defamation case against the ABC has attacked suggestions that she strategically delayed bringing the conflict of interest challenge.

Senior barrister Sue Chrysanthou is reportedly facing court action to prevent her from continuing to act for Christian Porter in the former attorney-general's defamation case against the ABC.

Facing a defamation suit by former attorney-general Christian Porter over an article centring on historical rape allegations, the ABC has said it will argue the substantial truth of many of the alleged defamatory imputations and will call at least 15 witnesses to make good on its defence.

Former attorney-general Christian Porter is seeking to block the public from seeing portions of the ABC's defence to claims that it defamed him with an article detailing historical rape allegations.

Former Solicitor-General Justin Gleeson SC, who recently called for an inquiry into Attorney-General Christian Porter's fitness for office in the face of rape allegations, will represent the ABC against Porter's defamation claims.