Fine Gael

Nina Carberry, a Fine Gael Member of the European Parliament, said a 20% tariff for goods entering the US would be a "major blow".

Fianna Fáil - the largest party - has formed a government with Fine Gael and a range of independent regional TDs after November's election.

Fianna Fáil won 48 seats while Fine Gael was third with 38 seats.

It is not clear how that proposal will go down with Fianna Fáil and Fine Gael.

Fianna Fáil and Fine Gael emerged as the largest and third-largest parties respectively following November's election and committed to returning to government together.