A new poll shows Fianna Fáil overtaking Fine Gael for the first time in eight years.
At 26%, the party holds a three-point lead over Fine Gael.
The Behaviour & Attitudes survey in today's Sunday Times has Sinn Féin up two points to 17%, while the Independent Alliance are up three points to 8%.
Labour is unchanged at 4% while unaligned independents are down three points to 10%.
The Triple A-People Before Profit is down one point to 4%.
The Greens and the Workers Party are on 3% and the Social Democrats are down one point to 2%, while Renua are down two points to 1%.