Incumbent president Andrzej Duda flashes a victory sign in Pultusk, Poland on Sunday. Duda, a conservative, emerged victorious from a tight race against liberal Warsaw mayor Rafal Trzaskowski. Photograph: Czarek Sokolowski/AP

Andrzej Duda has won Poland’s presidential election, after a bitter campaign that laid bare the deep social, cultural and geographical faultlines in t(...)