Sinn Féin’s support has risen significantly by five points to 22%.
Fianna Fáil is up one point to 19%.
When [undecideds] are excluded, Fine Gael support was measured at 25% down two points
Labour has also dipped by two points to 8%.
Support for Independents and the smaller parties fell by two points to 26%.
72% of people questioned have said that they would vote yes in the Same Sex Marriage Referendum with 20% opposed to the proposal and 8% undecided.
The latest RED C/ Sunday Business Post opinion poll.
Poll taken Monday/Tuesday (before-Siteserv).