Independent Presidential candidate Dana Rosemary Scallon has rejected allegations made against a member of her family.
In a TV3 interview this evening, Ms Scallon also confirmed that she intends to stay in the Presidential campaign.
Ms Scallon said the only two times such allegations have been made were during a US court case several years ago and now during the Presidential campaign.
She referred to allegations, which were of an "untrue, malicious and vile nature", during the debate on RTÉ's Prime Time on Wednesday night.
Ms Scallon also referred to a "threatening" email she has received, which is understood to have originated in the US.
A spokesperson has said her legal team in the US is dealing with the matter.
Ms Scallon said the email began: "HAHAHAHAHAH - The b***h finally gets what she deserves."
She said a freelance reporter had contacted her and said the allegation would be extensively covered.
Ms Scallon said it was an attempt to make her stand down, but she will not stand down.
There had been speculation today that she may withdraw as she has not been campaigning for the past two days and was thought to be seeking advice on her future plans.
It is too late for her name to be legally removed from the ballot paper, so even if she announced she was withdrawing her name would remain on the 27 October ballot.
Ms Scallon will resume campaigning tomorrow and is expected to canvass in the Galway area.
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Norris request that TCD release illness pay info
Senator David Norris has asked Trinity College Dublin to provide details of the money paid to him while he was ill.
David Norris said today that the amounts varied over the years.
The payments were related to the cost of living index but he added that the final payments just before they stopped amounted to €2,300 a month after tax.
David Norris has already disclosed the pension which he is currently receiving from Trinity College Dublin.
Seán Gallagher visits Moneygall
Meanwhile, Seán Gallagher campaigned in Co Tipperary today and visited business, volunteer and community groups in Thurles, Templemore and Roscrea.
He said he is disheartened about how his past associaton with Fianna Fáil continues to be put to him by the media during his campaign.
Mr Gallagher said he believes the people deserve a much wider debate about the role of the President and he is trying to concentrate on those issues.
He also visited Moneygall, Co Offaly, where he met people in Ollie Hayes's bar. He the visitor's book, which was signed last May by US President Barack Obama and his wife Michelle.
Mr Gallagher spoke of how Moneygall was a real example of what a small community can achieve when it works together.
He said there is a huge appetite for community leadership in the country at present and he said Ireland would rebuild itself one community at a time.