Support for Sinn Féin has increased to its highest level in more than a year, according to the latest RED C/Sunday Business Post opinion poll.
Fine Gael, which has been in the eye of a political storm over the last fortnight, remained static in the survey while there was a slight decrease in support for Fianna Fáil.
After a period of intense focus on Fine Gael and in particular Taoiseach Enda Kenny's leadership, the party's support was unchanged at 24%in the poll.
While, Fianna Fáil had opened a significant gap on Fine Gael in separate recent opinion polls, that is not the case with this poll.
At 26% Fianna Fáil's support dropped by a single point to leave it just two points ahead of Fine Gael and within the 3% margin of error.
However, Sinn Féin's popularity with voters has surged in the last week. It rose by five points to stand at 19%.
That party has repeatedly called for a general election in response to the political turmoil of recent weeks.
There was a fall in support for non-aligned independents which dipped by 4% to stand at 10%.
Labour dropped one point to 4% while the AAA-PBP gained two points to stand on 6% support.
The Green Party was unchanged on 4% and the Independent Alliance, on 3%, also had not moved in this poll.
The Social Democrats were at 3% and support for Renua was measured at 1%.