With just days to go before Ireland's historic referendum on the legalisation of gay marriage, a bitter row has broken out between supporters and opponents over the funding of their respective campaigns.
Supporters of a yes vote have accused opponents of a lack of transparency over finances and of accepting funding from right-wing Christian groups in the US.
If the referendum is passed on Friday, gay couples will have the right under the state's constitution to marry. A yes vote would also mark yet another defeat for the Catholic Church and the political power it used to wield in Ireland.
The yes campaign says its opponents have a huge advantage in terms of resources for buying billboard and poster space and have spent tens of thousands of euros in the past few weeks alone.
One of the no side's strongest supporters in the US is the lavishly funded National Organisation for Marriage (NOM). In a letter to supporters around the world, it has urged evangelical Christians to visit keepmarriage.org, which is campaigning for a no vote.