Moving on to Brazil. The country's Workers Party suffered the worst hit of its history with the impeachment of Dilma Rousseff. Now the party is struggling to show strength in this year's municipal elections. A weak showing is expected.

Sonia Gamba use to vote for the leftist Workers Party. She even keeps pictures of past political campaigns holding the party's iconic red star. It was a time when many saw them as the only ethical party in the country.

The Workers Party was born during the late 1970's strikes that helped to bring down military dictatorship, promising a different brand of politics once it got to power. But for many past supporters, the party did not live up to the expectations created.

"I don't vote for the Worker's Party anymore because overtime it disappointed me. All we hear and read about these days is about their involvement in corruption," said Sonia Gamba, retired teacher.

"They used to say they were the only clean political party in Brazil but once they got to power, they started to do the same things they criticized before."

This year's municipal elections will be a test for the party's strength. And it's not looking good. Analysts may disagree on figures but there's no dispute that party will come out of them much weaker.

"Weaker in terms of numbers because the party is already weak today considering for example the public support that it has. The Workers' Party used to be the most popular political party in Brazil. It still is but no party is popular in Brazil today," said Claudio Couto, political scientist.

Sao Paulo, Brazil's biggest city, is among those where the Workers Party seems to be headed for a defeat. Incumbent mayor Fernando Haddad is fighting for his reelection but less than one week before the first round of municipal elections, he is currently polling in fourth place.

In a press conference to the foreign media, Fernando Haddad said he's still confident to get to the second round. The mayor says that when he was elected four years ago, polling also counted him out just days before the vote. But he admits that in the long run, his party will need to reinvent itself to remain relevant.

"We need to stop thinking only about the party but rather think about a field of alliances in Brazil's left wing," said Fernando Haddad, Mayor of Sao Paulo.

"Leftists needs to regroup and rethink their role, around principles and values, to be able to have a strong showing in the 2018 presidential elections, not necessarily with a Workers Party candidate. Maybe we should support a candidate from another party."

The Workers Party remains the largest political group in Brazil's left wing. But after the traumatic end of its thirteen years in power with the impeachment of Dilma Rousseff, its future is all but certain.