Micro parties to hold war room meeting

Micro parties set to be obliterated under the Turnbull government's changes to how Australians vote for senators will convene a "war room" meeting on the weekend.

Glenn Druery, the man known as the "preference whisperer" for his ability to devise vote-swap deals, told ABC TV about 40 micro party representatives will meet to work out a game plan.

Mr Druery signalled an attack on Liberal and Green marginal seats is an option, as well as flooding electorates with pop up party candidates to bring down the quota needed to be elected.

Meanwhile, Mr Druery predicts if it comes to a double dissolution election a mixed bag of senators will emerge holding the balance of power.

He believes the half quota used in double dissolution elections could see the independent senator Nick Xenophon's party pick up three to four seats, the Jacqui Lambie Network securing at least one and Clive Palmer having a fighting chance of retaining his seat in the lower house.

"If we do go to a double dissolution... the joke could be on the government," he said.