Romania’s electoral body has rejected the candidacy of controversial far-right politician Diana Sosoaca in the presidential election rerun in May, but approved George Simion, the leader of the country’s most popular far-right party.

The 62-year-old Georgescu will lodge his appeal to Romania’s Constitutional Court in the capital Bucharest, a day after the Central Election Bureau rejected his candidacy, accordingly to close political ally George Simion. The court will have 48 hours to make a decision.

Romania's populist far-right politician George Simion is making his bid for the country’s presidential election rerun in May as he seeks to rally nationalist voters after a controversial frontrunner was barred from the race last year.

Romania's top court upheld a decision to ban far-right candidate Calin Georgescu from standing in a presidential election rerun in May, broadcaster Digi24 cited sources as saying on Tuesday, leaving his allies with four days to find a replacement.

Romania is in for a rough presidential election this May as U.S. President Donald Trump's allies condemn the banning of Călin Georgescu, a far-right contender, from the ballot.

Controversial politician Diana Sosoaca, who was barred by a top court from entering last year's presidential election, raises her hand wearing boxing gloves speaking outside the country's electoral authority after she registered an unlikely bid to enter the May rerun in Bucharest, Romania on March 13. (AP)

The leader of Romania’s largest far-right party will be allowed to take part in May’s presidential election after the previous frontrunner, whom he backed, was barred from the race.

Romania’s central election authority barred far-right candidate Calin Georgescu from competing in May’s presidential election re-run, not the European Union, contrary to misleading posts online.