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Peta Credlin is a hard right Liberal (let's face it if you want to work for Sky you have to be). Her husband was Federal Director of the Liberal Party but was more centre right politically than her - I have no idea what he does now he seems to have vanished from the political scene.
She is a very astute political commentator for hard right wing politics.
She was a career political staffer for the Liberal party culminating in being Chief of Staff for the ultimate Liberal right winger PM Tony Abbott.
It is worth remembering that when you listen to her, she won't care about the end effects of Brexit on the poor, the pensioners or working class.