A new opinion poll shows support for the Labour Party at just 6% - its lowest rating in the last nine months.
The latest Behaviour and Attitudes survey for tomorrow's Sunday Times says Fine Gael has risen three points up to 27%, while Fianna Fáil is up two to 20%.
Sinn Féin is also up to 19%
Fianna Fáil's Micheál Martin remains the most popular party leader at 39%, although he has dropped three points.
He is followed by Labour leader and Tánaiste Joan Burton, who is up three to 37%.