Fianna Fáil has won three points and has the support of 24% of voters, according to a new poll, reports RTE.
The Sunday Times/Behavior and Attitudes poll shows that Sinn Féin remains the most popular party with an unchanged 34%.
Polls suggest Fine Gael is down one point to 19%.
The Greens and Labor are said to be down two points each by 4%, reports RTE.
The Social Democrats and the People Before Profit Solidarity remained unchanged at 2%.
Aontú went up one point to 1% while Independents went up one point to 10%.
The poll was conducted between 28 June and 12 July and involved 910 eligible Irish voters.
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