Hungarians are heading to the polls in an election that could end Prime Minister Viktor Orban's 16-year rule. Opposition leader Peter Magyar has emerged as the biggest threat to Orban's grip on power. Viktor Orban, who has been in office since 2010, is seeking a fifth term Orban is facing an unprecedented challenge from Peter Magyar, a former ally Opinion polls have shown Orban's Fidesz party trailing Magyar's opposition Tisza party Here's the latest on Hungary's parliamentary election on April 12: