A fall in support for both Fianna Fail and Fine Gael has seen Sinn Féin widen its lead in the polls.
It's the eighth month in a row that Sinn Fein has maintained it's lead in the Business Post / Red C poll.
It's holding onto a high of 36 percent, against Fine Gael on 19 percent, and 14 percent for Fianna Fail.
