The Broadcasting Authority of Ireland (BAI) has given its response to the Frontline Presidential debate on RTÉ.
Last week the broadcaster admitted this was responsible for changing the course of the election.
The BAI says it is broadly satisfied with an RTÉ assessment of the programme during which an anonymous tweet was put to candidate Seán Gallagher.
Last week RTÉ news and current affairs editor David Nally told Newstalk Breakfast that after watching the debate people decided not to vote for Mr. Gallagher as "it was too big a leap".
He said "Yes I do accept that it changed the outcome of the Presidential debate, of the Presidential election".
"People who watched the programme made their decision, and a certain chunk of the audience decided - I think - that making Sean Gallagher the President, straight into that office from nowhere it seems that a chunk of the electorate decided in the final few days that it was too big a leap - it was a leap in the dark" he added.
The BAI Compliance Committee has decided an investigation of the programme under Section 53 of the Broadcasting Act would not add to what has already been learned.
Fundamental failings
Newstalk's political editor Shane Coleman explains the BAI decision.
"A statutory investigation is not warranted - now they are quite critical of RTÉ in their statement, specifically they're saying the programme fell significantly short of the standards expected by the public of Irish broadcasters" he said.
"They're saying serious and significant editorial failings took place during a television debate of utmost public importance and interest".
"It's of the view - the Committee - that these failings related to the fundamentals of journalistic practice" he added.
