Ireland won't be voting for the Mercosur deal.
The EU is due to vote on the arrangement on Friday, which would increase trade opportunities between Europe and Argentina, Brazil, Paraguay and Uruguay.
The Taoiseach says huge progress has been made in relation to the deal, but says he doesn't have confidence that Irish farmers won't be under pressure if the deal goes through.
On Thursday's Let's Talk, Sligo-Leitrim TD and Sinn Féin spokesperson on agriculture, Martin Kenny criticised the government for their u-turn.
While on the same programme, Minister of State and fellow Sligo-Leitrim TD, Marian Harkin rejected Deputy Kenny's claims: