(PRAGUE) - Eurosceptic Czech President Vaclav Klaus challenged the European Union's Lisbon Treaty again shortly after the top Czech court on Wednesday rejected his arguments against the document.

The constitutional court paved the way for the treaty's ratification by parliament when it ruled it was in line with the constitution, despite Klaus's argument that the treaty undermined the country's sovereignty.

"I expect a group of MPs or senators to raise these arguments again, but above all to raise new arguments (against the treaty)," the visibly upset Klaus said on the CT 24 news channel.

The court verdict allows opponents to contest the document again as the judges dealt only with some articles of the treaty, which is designed to streamline EU decision-making after the 27-nation bloc's enlargement.

The Czech Republic, which will take over the EU's rotating presidency on January 1, is the last EU member state to begin the ratification process after Ireland rejected the document in a referendum in June.

After the ruling, Klaus said it was obvious "the text was written long before the court hearing" and that the court had shifted the hearing "from a legal to a political level."

He added: "But this shift to a political level opens the way to a serious political debate in our country in the upcoming period."

Klaus called on the cabinet to start a discussion on the treaty with the public.

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