Romanians vote in a presidential election runoff on Sunday that could see Calin Georgescu, a far-right critic of NATO, defeat pro-European centrist Elena Lasconi, an outcome that might isolate Romania in the West and erode its support for Ukraine.

A top Romanian court has validated the first round of a presidential race in which a far-right outsider emerged as the frontrunner, plunging the country into a week of turmoil amid allegations of electoral violations and Russian meddling.

Romania’s Constitutional Court ordered a recount of all the votes in the first round of the presidential election, which was won by a little-known pro-Russian candidate, deepening the political crisis in the country.