Mining magnate and political aspirant Clive Palmer has hung up on an interview with Melbourne ABC radio host Jon Faine.
The Palmer United Party leader took offence at questions about Victorian Senate candidates Barry Michael and Doug Hawkins.
Faine asked Mr Palmer about previous allegations against both men, one a former boxer and the other a former AFL player.
Mr Palmer called the questions "slander".
"They haven't been convicted of anything. They weren't true, the allegations weren't true," Mr Palmer said.
"Why don't you talk about policy? Why don't you talk about reducing the pensions?
"I'm not going to talk about things ... which are not true. These were allegations in a court. The court dealt with them and found them to be no case to answer."
Mr Palmer then said "goodbye" and hung up.
Faine said when his producers called Mr Palmer back, he told them to "get stuffed".
He said he believed the questions were relevant because they went to the candidates' characters.
Several callers lashed Faine for focusing on the past and failing to ask Mr Palmer about his policies.