As the NSW seat of New England goes to a by-election after the High Court ruled the Nationals' Barnaby Joyce was ineligible on dual citizenship grounds, speculation strengthens that another NSW seat - Bennelong - could go the same way.
Sitting MP John Alexander is suspected of holding a British citizenship, deepening the dual citizenship crisis.
Senator Cory Bernardi spoke on the ABC 7.30 program last night, saying "Ultimately we want the Australian people to be able to have confidence in the people that have been elected to the Parliament, so what we should be doing is proroguing the Parliament, we should be suspending it, no more decision-making to take place until we can prove that everyone is fit and proper and constitutional to be there."
ABC 7.30 asserted that Senator Bernardi says the proposed citizenship register will do nothing to restore public confidence in how his old colleagues are handling the fiasco.
"We are on the cusp of a full-blown constitutional crisis," Senator Bernardi said, "the Government is taking steps which will not get to the bottom of it because they rely on the honesty and disclosure of members of Parliament, and what we've learned in recent months is that you cannot rely on them to put themselves in."