Ghosts of the past keep on popping up for Senator Pauline Hanson even as she dug in her heels over the latest public debate regarding the eligibility of Senator Malcolm Roberts to hang out in the red chamber. She's in the national spotlight now for her burqa stunt, but maybe she should think twice about inviting intense scrutiny. 

The One Nation leader spent part of last week batting away media questions related to her Senate colleague. Roberts has been referred to the High Court by his own leader to get clarity over his citizenship, dual or otherwise.