Jim McConalogue in The Irish Times writes: "The Czechs, the Poles and the Germans have still not yet ratified – with the first two awaiting the outcome of the Irish referendum and the third, awaiting this new national law before ratifying the treaty.

"The next UK government is also waiting to pounce after Ireland’s vote. If there is a No vote in Ireland, there will be no overall ratification of the treaty by all the EU member-states. Therefore, the treaty would be abandoned. This would mean that the UK’s Conservative Party commitment to a referendum on the treaty, if the ratification process is not completed across the Union, would create intense pressure for a UK referendum. While the UK has already ratified, a Conservative government would undo this by easily winning a No vote in a UK referendum, and withdrawing the UK’s ratification. The treaty will be dead – as it should have been after Ireland first said No." Read the letter here.