*UPDATED - Listen from 17:55 for Barry's mid-campaign update* "This is a cage-fight of a constituency". RTÉ Radio's Barry Lenihan and Cuan Ó Seireadáin, Political Correspondent with Raidió na Gaeltachta, pick through the geography, the rivalries, and the demographics of the hotly-contested Dublin Bay South 4-seater. Presented by Colm Ó Mongáin.

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