Answer
Andrzej Duda, a Law and Justice (PiS) candidate, was propelled to victory in the Polish presidential election of 2015 under the leadership of then-Prime Minister Beata Szydło. Szydło, a prominent PiS member and Duda's campaign manager, played a crucial role in mobilizing the party's conservative base and emphasizing Duda's commitment to traditional values and social welfare policies.