Bulgarians will vote Sunday for the second time in three months in a bid that this parliamentary election will eventually lead to the formation of a stable coalition after a decade of conservative Boyko Borissov being in power.

The former prime minister came first in the previous elections after winning 26% of the vote, but the massive protests last year weakened him.

Since then, the leader's position has weakened in the face of the almost daily flow of information coming from the interim government regarding corruption in the poorest country in the European Union.

He was also affected by the United States imposing sanctions on the elite that his critics accuse him of protecting.

Even if the GERB party, led by Boyko Borisov, manages to come first, "they will not govern" as other parties now snub them, political analyst Strahil Deliyski commented.

New Bulgarian University Professor Antony Todorov, another political analyst, added, "The stakes are therefore to find out if the elections will lead to a government (that will continue) the work for durable change started by the interim administration."

Trifonov's There Is Such A People party has already refused to work with either GERB, the opposition Socialists, or the Turkish minority Movement for Rights and Freedoms.

More than 900 people have been detained recently for allegedly trying to bribe poverty-stricken voters, said Interior Minister Boyko Rashkov.