Nationals leader Warren Truss reckons Clive Palmer could go the way of other political "saviours" such as Pauline Hanson.

He said those who voted for him in protest were ignoring their obligations to democracy and putting their country at risk.

All show: Clive Palmer's behaviour is an electoral asset. Credit:Alex Ellinghausen

Mr Truss, acting prime minister while Tony Abbott is overseas, said the coalition took its responsibilities seriously and would get on with the job of delivering what was important for Australia.

He said other parties could worry about themselves.