Hungarian Prime Minister Viktor Orban's ruling Fidesz party maintained a slim lead over an opposition alliance before Sunday's parliamentary election, a survey by the think tank IDEA Institute showed on Thursday.
The poll, conducted between March 22 and 28, put support for Orban's nationalist Fidesz at 41% of the electorate, up from 40% in early March, while the six-party opposition alliance stood at 39%, gaining two points from the previous survey.
