A pro-European Union centrist pulled off an upset in Romania's presidential election, beating out a hard-right nationalist who had channeled people's anger at the political establishment to surge in the polls.

It was held months after the cancelation of the previous election plunged Romania into its worst political crisis in decades.

Nicusor Dan, the mayor of Bucharest, defeated George Simion, a nationalist aligned with President Trump who had been seen as the front-runner.