Ricky Muir has "voted himself into unemployment", and may be replaced by controversial broadcaster Derryn Hinch, according to the political operative who orchestrated the preference deals that resulted in the Motoring Enthusiast senator's election in 2013.

Glenn Druery, known as the "preference whisperer", believes Senator Muir will not win back his seat in the coming double dissolution election and will most likely be replaced in Victoria by another bearded political aspirant.

As revealed by Fairfax Media in October, the so-called Human Headline is running for election on an anti-paedophile platform and has been quietly touring Victoria and other states building recognition for his Derryn Hinch's Justice Party.

Mr Druery, who worked briefly as chief adviser to Senator Muir before falling out with Motoring Enthusiast founder Keith Littler, said Mr Hinch's party was the most likely of the minor parties to fight it out for the 12th Senate seat in Victoria, with the fifth candidate on the Coalition ticket, the fourth on the ALP ticket and, perhaps, the Sex Party's lead candidate.