The latest opinion poll suggests a small drop in support for Fianna Fáil and Fine Gael while there were gains for Sinn Féin and Labour.

The Sunday Times/Behaviour and Attitudes poll surveyed voters over a two-week period up to last Tuesday.

The poll shows the main party in Government and the party underpinning that administration are the most popular with voters.

Continuing a post-election trend, Fianna Fáil ends the year in the lead on 28% despite a two-point drop compared to last month.

Fine Gael are close behind on 26% - that is also a drop of two points.

Sinn Féin gains two points to stand at 19% support.

This is despite the party being embroiled in controversy in the Dáil over the handling of information about the killing of prison officer Brian Stack in 1983.

However, party leader Gerry Adams’ personal satisfaction rating is down six points to 32%.

Labour is also up two points but the party gets the backing of just 5% of voters.

The Independent Alliance are unchanged on 5% while the AAA-PBP party is up one point to 4%.

Others including non-aligned independents are down one point to 10%.

The Greens are on 3% and the Social Democrats are on 1% in this poll that has a margin of error of 3.2%.

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