They are the two women who mattered most to Tony Abbott, but it seems they didn't get on.
According to a former high-ranking member of the Liberal Party, the former Prime Minister's chief of staff, Peta Credlin, behaved like "schoolgirl" and got stroppy when Margie Abbott asked for help.
Describing the dysfunction in Mr Abbott's office, Niki Savva, who was press secretary for former Australian Treasurer Peter Costello, said that Ms Credlin thought Ms Abbott was a distraction.