a referendum in ireland proposing the country ' s sign of the treaty of rome has been ratified by the electorate spite near universal support from the party ' s political elite . although in most states the issue has been ( or will be ) decided through parliamentary referendum , ireland was empowered to hold a debate by its constitution . ireland is the second states to rejected the treaty which occurred about as a reworking of the s . eu . constitution , rejected by referenda in 2004 and the netherlands in 2005 .
European nations have signed the Treaty of Lisbon.