BUDAPEST, March 4 (Reuters) - Hungary's centre-right Tisza party leads Prime Minister Viktor Orban's governing Fidesz before an April 12 election, while the far-right Our Homeland is gaining support, two opinion polls showed on Wednesday.
Nationalist Orban faces the biggest challenge to his rule in 16 years although the outcome of the vote remains highly uncertain, with opinion polls showing that many voters are still undecided.
