The latest political opinion poll has seen a sharp rise in support for Sinn Féin.
Fine Gael's support has fallen significantly, while Fianna Fáil looks set to be the largest party in the next Dáil.
This poll shows just 4 per cent separating the top three parties contesting this election.
The Irish Times/Ipsos MRBI poll has Fianna Fáil unchanged as the largest party on 25% support.
Fine Gael drop 6 points to 23 per cent
While Sinn Féin is up 7 to 21% support - boosting Mary Lou McDonald's calls to be included in tomorrow night's leaders' TV debate.
The Green Party has 8 per cent support with Labour on 5.
The Social Democrats and Solidarity/People Before Profit have 2 per cent a piece.
Independents and others hold 14 per cent in this poll of 1,200 adults which was carried out across every constituency last Thursday, Friday and Saturday.
The margin of error is 2.8 per cent.
Both Leo Varadkar and Micheál Martin have seen their personal satisfaction ratings fall since the last poll in October - the Taoiseach's dropping 16 per cent.
While Mary Lou McDonald sees her satisfaction rating rise to 34% - just a point behind Varadkar at 35%.