PALMER United Party candidate Mark Cory said he had been unsuccessful in convincing the Australian Electoral Commission to investigate claims of ballot box irregularities in the Mallee.
Mr Cory said he spoke to the AEC on Friday.
"I have not been promised an official investigation," he said.
Without the support of his sources, who Mr Cory said were unwilling to be further involved, he said the AEC would not launch a formal investigation.
"The AEC's greatest concern was that the integrity of their staff had been brought into question, which is fair enough," Mr Cory said.
"As far as I go, I am prepared to fall on my sword and not be involved in politics any more if that is what the people of the Mallee so wish.
"While I stand by what I did, I might have gotten it wrong and I will wear it."
Mr Cory said he would have no further involvement in the claims, and congratulated Andrew Broad on the election result.
"There was never any question of his involvement," he said.