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
Prime minister Bahrain's prime minister, Sheikh Khalifah bin Sulman Al Khalifah has been in the post since 1970, making him the longest serving non-elected prime minister. The post of prime minister may be encountered both in constitutional monarchies (such as Belgium, Denmark, Japan, Luxembourg, the Netherlands, Norway, Malaysia, Morocco, Spain, Sweden, Thailand, Canada, Australia, New Zealand, and the United Kingdom), and in parliamentary republics in which the head of state is an elected official (such as Finland, the Czech Republic, France, Greece, Hungary, India, Indonesia (1945-1959), Ireland, Pakistan, Portugal, Montenegro, Croatia, Bulgaria, Romania, Serbia and Turkey (1923-2018)). See also "First Minister", "Premier",