Fine Gael and Fianna Fáil are to hold talks this week
A new poll in today's Sunday Times shows that Fianna Fáil would be the most popular party if voters were to go back to the polls.
The party holds a three point lead over Fine Gael, with support for their party leader Enda Kenny also falling.
The Behaviour & Attitudes survey has Sinn Féin up two points to 17%, while the Independent Alliance are up three points to 8%.
Unaligned independents are down three points to 10%, while Labour are unchanged at 4%. AAA and People Before Profit are down by one to 4%.
The Greens and the Workers Party are on 3%, while both the Social Democrats (2%) and Renua (1%) are both down one.