"I haven't met anyone yet who doesn't care about the country, doesn't care about the community.
"My job is to help them understand the challenges ... to give them the opportunity to speak to the Treasury officials that I speak to.
"Once they see that and once they get those briefings, then they can see how important it is to support certain measures in the budget.
"Now they might have variations on those measures and we're prepared to deal with the reality."
Mr Palmer says even if some wider exemptions were given, the co-payment will still hit a large group within the Australian community.
"We need to see the hard policy but I don't think we can stand by and let our pensioners and vulnerable people be attacked by this policy," he told Radio National.
"It's not just pensioners [but] low-income employees, people with families."
Shadow Treasurer Chris Bowen is warning Labor is not open to negotiating on the policy.
"There is no compromise on the GP co-payment," he said.
Mr Hockey is now expected to meet with PUP Senator Dio Wang.
More to follow.
PHOTO: Joe Hockey says the Government is prepared to discuss wider exemptions to the Medicare co-payment.(AAP: Alan Porritt)
