Prime Minister of Poland president to fully disrupt the government, and further strengthening the prime minister's position. Under President Aleksander Kwaśniewski, Prime Minister Jerzy Buzek's government became the first administration to be elected under the new constitution. Despite being from opposite parties (Kwaśniewski's center-left Social Democracy of the Republic of Poland and Buzek's center-right Solidarity Electoral Action), the relationship between both offices was smooth, partly due to Kwaśniewski's non-confrontational personality. Kwaśniewski sparingly used his veto powers in legislation the president did not agree with, choosing to let the government's concordant with the Holy See, a new lustration act and new electoral statutes to proceed
Jerzy Buzek "motor of integration." Affirming his commitment to the Eastern Partnership and "those who do not have the possibility to participate in our European integration project", Buzek announced that the prize money would be donated to the European Humanities University (EHU), A Belarusian university in exile in Vilnius. The Lisbon Treaty, which came into force on 1 December 2009 shortly after Buzek assumed office, brought a conclusion to nearly a decade of internal discussions and greatly boosted the democratic powers of the European Parliament. From very early on Buzek has been a vocal supporter of the treaty as part of a