Meanwhile, an adviser to Polish president Lech Kaczynski – who still has to complete Poland's ratification by signing the document – has said that Mr Kaczynski should know whether the Lisbon treaty exists before he goes forward.
"For now, there is a strong suggestion the treaty may have ceased to exist as it was rejected by one [EU] country," the presidential aide, Michal Kaminski, told Polish daily Rzeczpospolita.
The Polish prime minister, Donald Tusk, is strongly pro-ratification, however. A TNS OBOP opinion poll over the weekend said 71 percent of Poles would back the treaty if there was a referendum in Poland.