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Disgraced MP Adem Somyurek decision to bully federal MPs and "try and take control" over their preselections was likely the catalyst for his downfall, according to Sky News contributor Stephen Conroy.

Labor's National Executive is expected to endorse party elders Steven Bracks and Jenny Macklin as administrators of the Victorian branch in the wake of the Adem Somyurek branch stacking scandal.

The review will be extensive, with all committees of the Victorian state conference having been suspended and all voting rights suspended until 2023.

The review was sparked after a joint 60 Minutes and Nine Newspaper investigation alleged former Labor MP Adem Somyurek used fraudulent documents to branch stack and install politicians loyal to him.

He was also caught on secret recordings denigrating his colleagues and boasting about how he wielded the real power in Victoria.

Branch stacking is where an individual or group improperly increases the membership of a local branch of a political party in order to ensure the preselection of a particular candidate.

Mr Conroy told Sky News Somyurek's behaviour was becoming even more egregious

"His decision to want and try and take control of a whole range of federal electorates so he could either replace sitting federal MPs or pressure them into supporting what he wanted and make them compliant to his wishes has created a situation people could no longer stomach his activities," he said.

"I think a whole range of people had decided the level that was being escalated to, the blatant breaches of the rules, were no longer acceptable."