Clive Palmer has called for Treasurer Joe Hockey to be sacked over a number of unpopular measures in the Government's budget.

One minister has told the ABC the Treasurer should be replaced with Communications Minister Malcolm Turnbull.

Mr Hockey has been under pressure with reports some Liberal colleagues believe his performance in selling the budget message has not been good enough and they want him replaced.

Mr Palmer, leader of the Palmer United Party, said Mr Hockey's affirmation that the Government still intended to pursue changes to Medicare and higher education showed he did not understand how to stimulate the economy.

"It's time to throw the guy out because we can't continue to affect peoples lives the way they're continuing to do it," Mr Palmer told ABC News Breakfast.

Mr Turnbull has this morning denied seeking the job, or being approached about it by Prime Minister Tony Abbott.

"I have never asked or suggested to the Prime Minister that he should appoint me as treasurer," Mr Turnbull said.

"The Prime Minister has never asked me or suggested to me in any way that he would appoint me treasurer.

"I have complete confidence in Joe Hockey, my friend and colleague, as treasurer."

But Mr Palmer said Mr Hockey should not remain in the job if he continued to press for savings in health and welfare.

"If he continues his cuts, he'll destroy demand, collapse the economy and we'll never get back to surplus.

"We live in a democracy, goodbye Joe Hockey."

Mr Palmer also confirmed the Palmer United Party's two senators will again vote against the contentious policies, if and when they come back before the Upper House.

"There'll be no co-payment, there'll be no retrograding of higher education," Mr Palmer said.

"The answer is no. Get it through your thick skulls, Government."

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 13 minutes 58 seconds 13 m Joe Hockey speaks with 7.30

The uncompromising approach from Mr Palmer comes after Prime Minister Tony Abbott promised the Government would not 'pick fights it can't win' with the Senate in 2015.

Mr Palmer called on the Prime Minister to follow through on that pledge.

"The Prime Minister said he would listen. If he's really listening, people don't want these cuts," Mr Palmer said.

Mr Abbott has admitted the Government 'bit off more than it could chew' in 2014.

Yesterday however, Mr Hockey told the Coalition's joint partyroom meeting that it was essential the Government not abandon the savings it announced in last year's budget.

"If we junk unimplemented savings measures, we'll never get back to surplus," he told his colleagues.

Mr Palmer disagrees.

He has instead called for a 'national economic summit,' to examine opportunities for reform.

Mr Hockey told ABC's 7.30 last night the Government should have staggered the release of its financial plans instead of trying to fit everything into the 2014 budget.

"There's an argument that we shouldn't have put everything into the budget immediately, that we should have staggered it during the course of the year," he said.

"But we have no choice, we cannot continue to ignore the future."