Are the Coalition about to split (again)?

The Nationals have officially ditched net zero by 2050, issuing a test for Sussan Ley and the Liberal party.  So, can the Coalition find a path through this?

It comes as Optus executives have faced a grilling at a Senate inquiry into the fatal triple-zero outage. 

Patricia Karvelas and Jacob Greber break it all down on Politics Now.

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