Impeachment supporters celebrated a two-thirds majority vote in the lower house of Brazil's Congress to move forward an impeachment measure against President Dilma Rousseff. Crowds flooded the streets as the vote now heads to Brazil's Senate. (Jenny Starrs/The Washington Post)

In her first public remarks since losing a critical impeachment vote, Brazilian President Dilma Rousseff said Monday she would not go down without a fight and insisted there was no legal basis for her removal.

Rousseff, a former Marxist guerrilla who was jailed by Brazil’s military dictatorship in the early 1970s, said she is fighting for the same democratic principles now as then. She called the impeachment effort a “coup” masquerading as a legal procedure.

“We are at the beginning of a struggle, which will be long and slow,” she said.

But the impeachment vote in the lower house of Congress showed that her chances for survival are narrowing.

On Sunday night, Brazil’s Chamber of Deputies voted 367 to 137 in favor of impeachment. Lawmakers lined up on the floor of the parliament to denounce her in a six-hour spectacle, then celebrated the final tally with taunts of “Bye-bye, darling.”

Opposition lawmakers celebrate after the lower house of Congress voted to impeach Brazil's President Dilma Rousseff in the Chamber of Deputies in Brasilia, Brazil. (Eraldo Peres/AP)

The fight now shifts to Brazil’s Senate — and possibly to its streets, where Rousseff’s Workers’ Party will try to show it still has some muscle.

There is little doubt that Rousseff would not be in this predicament if she were not so widely disliked, blamed for the worst economic crisis in 80 years and compounding corruption scandals. Whether that unpopularity is a good reason to cut short her presidency is the question many Brazilians are struggling with.

Senators will decide, possibly as soon as next month, whether to accept the lower chamber’s motion to open impeachment proceedings against her. If the measure wins a simple majority in the 81-member Senate, Rousseff will be suspended and the Senate will essentially turn into a courtroom. Members would have 180 days to decide her fate, with a two-thirds majority needed to remove her.

Rousseff is not accused of personal corruption but of political trickery by allegedly manipulating public accounts to hide her administration’s budget woes. She would be the second Brazilian president impeached since the return of democracy in 1985 after 21 years of military rule; former president Fernando Collor de Mello was impeached in 1992.

“The acts they accused me of were practiced by other presidents of the republic before me and weren’t characterized as illegal or criminal acts,” Rousseff said Monday.

Mathieu Turgeon, a professor of political science at the University of Brasilia, said the impeachment process “may bring short-term relief to a struggling economy and a dysfunctional government,” but it may undermine Brazil’s democratic stability in the long run.

“It carries very undesirable consequences for the consolidation of Brazil’s democratic institutions because she is being impeached on weak grounds,” Turgeon said. Her accounting ma­neuvers were “a common and tolerated practice used by former presidents and current governors,” he said.

The impeachment vote “could send a wrong signal about the possibility to remove fairly elected presidents when [they] become unpopular and/or unable to govern, even in the absence of much legal basis for such a procedure,” Turgeon said.

Rousseff’s removal is unlikely to lead to further economic instability, however. Global financial markets have demonstrated a preference for her vice president, Michel Temer, who would become interim president if Rousseff is forced to step aside. Temer has promised to simplify Brazil’s tax code and enact pension reforms favored by many businesses.

During her news conference Monday, Rousseff blasted Temer as a traitor.

He has been named in a vast corruption scandal at the state-run oil company, Petrobras, that has mostly tarnished Rousseff’s Workers’ Party. But Temer’s centrist PMDB party is the largest in Brazil’s lower house, and lawmakers there may try to maneuver to shield him from problems.

“I think Temer is going to be given a grace period,” said Marcos Troyjo, a Brazil expert at Columbia University. “Both the markets and a large proportion of the public want to see Dilma go and will be much more welcoming.”

Attorney General José Cardozo, a Rousseff ally, told reporters Monday that the president would face “a different atmosphere” in Brazil’s Senate. “The president is a strong woman . . . and knows how to fight a good fight,” he said.

Some in Brazil speculated Monday that Rousseff may call for new elections rather than face additional humiliation in Senate proceedings. This path may also appeal to Rousseff because so many of her rivals, including her former running mate, Temer, have such low public standing.

Rousseff’s coalition “will most likely push for a constitutional amendment that pushes for new elections — which holds more support than impeachment vis-à-vis public opinion,” Christopher Garman, managing director at the Eurasia consulting group, said in a statement Monday, adding that the Workers’ Party will also “take to the streets with organized labor.”

Left-wing groups have already threatened “land occupations, strikes, blocking highways and avenues, occupations of public buildings,” said Guilherme Boulos, national coordinator of the Homeless Workers Movement.

Large crowds cheered deliriously on Sao Paulo’s Paulista Avenue late Sunday night when opposition lawmaker Bruno de Araújo cast the vote tipping the balance in favor of impeachment. He was lifted up on the shoulders of lawmakers as if he had kicked a winning soccer goal.

But the rowdy scenes in Congress — with deputies shouting and shoving — were so indecorous at times that they seemed to alienate even some who supported Rousseff’s ouster.

“Reaching the end of this horror show I have just one sensation — that there is nothing to celebrate,” Inara Prudente, 51, wrote on social media after Sunday’s vote. “I don’t like Dilma, I don’t like her government, I don’t think she can govern alone the way things are. But what comes next is very frightening.”