Brazil in marathon impeachment debate

Dilma Rousseff remained defiant ahead of the vote

Brazil's Senate is debating whether President Dilma Rousseff should face a full impeachment trial.

The majority of the senators have already said they will vote against the president.

If this is confirmed in a vote to be held later, Ms Rousseff will be automatically suspended from office.

She is accused of illegally manipulating finances to hide a growing public deficit ahead of her re-election in 2014, which she denies.

Ms Rousseff made a last-ditch appeal to the Supreme Court to stop proceedings, but the move was rejected.

What's happening now?

A lengthy debate is under way which precedes the actual vote. The Senate session opened almost 18 hours ago.

There are a total of 81 senators in the upper house. Seventy-one registered to speak during the debate and each has been given 15 minutes for their speech.

Only after all of them have had their say will the electronic vote take place. This is not expected to happen before 06:00 local time (09:00GMT).

The session has been a lot less passionate than that in the lower house on 17 April in which a overwhelming majority of the 513 lawmakers voted in favour of the impeachment proceedings going ahead.

The members of the lower house cited all kinds of reason for their decision with many saying they were doing if "for my family", "for God" or simply "the country".

Brazilians opposed to Ms Rousseff gathered in Sao Paulo and other cities to show their support for the impeachment trial

But there were also rallies in support of Ms Rousseff

By 04:50 local time (07:50GMT), 64 senators had spoken.

Of those, 43 - a majority - backed the impeachment trial in their speeches, 20 rejected it and one did not give an indication as to how he would vote.

Seven senators have yet to speak.

What do Dilma Rousseff's critics say?

In the Senate, the arguments given for the impeachment trial have been mainly economic.

Many blamed President Rousseff for the dire straits the country's economy is in.

Brazil is suffering from its worst recession in 10 years, unemployment reached 9% in 2015 and inflation is at a 12-year high.

Senator Aecio Neves, who lost to Ms Rousseff in the 2014 presidential election, said: "Populist governments always act with fiscal irresponsibility and when they fail they appeal to the old 'us vs them' argument."

Aecio Neves lost to Ms Rousseff in the 2014 election

Football star-turned-senator Romario said he would vote in favour of the impeachment trial

"The poorest and most vulnerable in society, who need the government support the most, always end up paying the bill," he added.

Mr Neves said he would vote for an impeachment trial.

Ataides Oliveira of the opposition PSDB party said that "today, we're going to retrieve the country from the hands of the PT (Ms Rousseff's Workers' Party) and give it back to the Brazilian people".

Former football player turned senator Romario said Brazil was in "a very serious crisis" before revealing that "after much thought" he had decided to back her impeachment trial.

Senator Alvaro Dias said that "they [the government] have already stolen so much from us, don't let them steal our hope for a better future".

What do Dilma Rousseff's backers say?

Those arguing against the impeachment trial said it was tantamount to a coup d'etat.

The session in the Senate has been a lot calmer than that in the lower house on 17 April

Senator Telmario Mota said that "today we are seeing an attempted takeover of power which calls itself impeachment".

He added that the impeachment proceedings were "born of revenge, hatred and revenge".

Senator Fatima Bezerra from the Workers's Party called the proceedings "a farce". "Those who back this coup d'etat won't ever be forgiven," she warned.

Senator Vanessa Grazziotin of the Communist Party of Brazil said the impeachment process was just a pretext to put an end to the social programmes the Workers' Party had brought in.

Vanessa Grazziotin said she was voting for democracy and against "the coup", as she called the impeachment

Former President Fernando Collor de Mello, who himself faced impeachment proceedings in 1992, gave a lengthy speech about the injustice he said had been committed against him but failed to give an indication of where he stood on Ms Rousseff's impeachment.

If the vote goes against her, Ms Rousseff will be replaced by Vice-President Michel Temer while the impeachment trial lasts.

Her chief of staff, Jaques Wagner, said Ms Rousseff was "outraged by the injustice committed against her, but standing firm awaiting the Senators' decision.

Ms Rousseff and her chief of staff, Jaques Wagner, could be seen looking out from a window in the presidential palace

She has promised to fight to the end.

"I will not resign. That never crossed my mind," she said during a speech on Tuesday.