In Spain, voters will go to the polls for the third time in four years to choose a new government on Sunday. Prime Minister Pedro Sanchez called for an early election in February after right-wing and Catalan separatist parties rejected his minority government's 2019 budget. The last two elections resulted in a hung parliament and months of squabbling. As Filio Kontrafouri reports from Madrid, Sunday's vote once again appears to have no outright winner.

Campaigning for Sunday's election drew to a close Friday, and socialist Prime Minister Pedro Sanchez made this appeal.

PEDRO SANCHEZ SPANISH PRIME MINISTER "We are very close to achieving a parliamentary majority in order to have a socialist government with independence and recognized prestige so we continue with a change of course for social justice."

Sanchez is likely to win re-election. His ruling Socialist Party is leading in polls with about 30 percent. Less likely is the prospect of winning a governing majority. That means they will have to form a coalition. Without a coalition building history though and several divisive issues into play that could be especially difficult.

ALANA MOCERI PROFESSOR OF INTERNATIONAL RELATIONS, UNIVERSIDAD EUROPEA "They can make a coalition with the more left-wing Podemos. That seems like a done deal. But, they still won't have enough votes to form a government and they are going to need to bring in some of these regional parties and that means that is a major complication in selection."

Since 2015, the dominance of Spain's two main parties has fragmented. This has created political gridlock, with the socialist PSOE and the conservative People's Party struggling to form coalition governments. Voters will now choose between five different parties.

FILIO KONTRAFOURI MADRID "While all polls imply stronger support for the left, the reality is more complex. Voters in Spain are roughly divided in half between the left and right, which has been further fragmented by the arrival of the far-right VOX party."

VOX surged in popularity with its anti-feminist and anti-immigrant views.

SANTIAGO ABASCAL VOX LEADER "On April 28, we will choose between the anti-Spain and the real Spain and we will not allow the destruction or the suicide of Spain."

According to polls, VOX is poised to become the first far-right party to sit in parliament since the Franco dictatorship ended in 1975. Another factor makes Sunday's outcome uncertain. A respected survey shows more than 40 percent of Spanish voters are "undecided."

ALANA MOCERI PROFESSOR OF INTERNATIONAL RELATIONS, UNIVERSIDAD EUROPEA "It's really impossible to know how it will turn out on Sunday, and because there's a real pull and tug between the two traditional parties. And, a lot of people don't like them anymore and don't trust them."

Spain has been recovering from a devastating economic crisis. According to surveys, Spanish voters identify unemployment, currently the second highest in Europe, as their biggest concern. Filio Kontrafouri, CGTN, Madrid.