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Jarosław Aleksander Kaczyński (born 18 June 1949, Warsaw) is a Polish politician. He was born in Warsaw.
As a child, he and his brother Lech Kaczyński starred in the 1962 Polish movie The Two Who Stole The Moon (O dwóch takich, co ukradli księżyc), based on a popular Polish children's story by Kornel Makuszyński.
He was Prime Minister of Poland from July 2006 to November 2007. He is also the chairman of Law and Justice ("Prawo i Sprawiedliwość"), a political party which he helped start in 2001.
He ran for president in 2010, but was defeated by Civic Platform candidate Bronisław Komorowski.
In October 2020, he became the Deputy Prime Minister of Poland.
