The latest Sunday Business Post Red C Poll shows Sinn Féin is almost twice as popular with the electorate as Fianna Fáil and Fine Gael combined.
The poll puts the party at 34 per cent with Fine Gael on 20 per cent followed by Fianna Fáil on 15 points.
The Social Democrats are on six per cent, while Labour and the Greens are both on four per cent with People Before Profit on three per cent followed by Aontú on one per cent.
Michael Brennan of the Sunday Business Post says Sinn Féin appear to be enjoying a boost arising from their performance in the local elections in the North:
