The right-wing party's faith in Karol Nawrocki, a historian with little political experience, proved well-placed in this week's Polish presidential elections.

WARSAW (Reuters) -Polish nationalist candidate Karol Nawrocki won the second round of the country's presidential election with 50.89% of the votes, the electoral commission said on Monday, in a blow to the reform agenda of the pro-European government.

The victory of Karol Nawrocki, who is backed by the previous right-wing governing party, will complicate Prime Minister Donald Tusk’s efforts to advance his liberal agenda.