A Fianna Fáil senator has used parliamentary privilege to claim that Enda Kenny discussed appointing John McNulty to the Seanad as long ago as June.
Fianna Fáil's Mark Daly made the claim in the Seanad this evening.
A spokesman for Enda Kenny has denied the claims, saying the two had only ever discussed the subject when they met for an interview in early September.
However, this evening Senator Daly claimed that the possibility of getting John McNulty into the Seanad could have been raised three months earlier.
He said: "On the 20th of June this year, the Taoiseach visited Sligo for the opening of Lisadell House.
"During that visit I believe that Mr McNulty met him with a delegation and the issue of the Seanad by-election was discussed.
Sources close to Mr McNulty, who is expected to poll strongly in Friday's Seanad by-election, said the claims were "absolute rubbish".