Dilma Roussef, a former left-wing activist and Brazil's first female president, has filed an appeal at the Supreme Court against the Senate's decision to dismiss her after an impeachment trial.
More than two-thirds of the Senate voted on Wednesday to remove Rousseff from office for illegally manipulating the budget two years ago. Rousseff said the impeachment proceedings amounted to a coup d'etat.
The proceedings against her in the Senate were flawed, said her lawyer, Jose Eduardo Cardozo. He requested "the immediate suspension of the effects of the Senate decision" and a new vote at the Senate but analysts says Rousseff's appeal has very little chance of succeeding.
Hours after the vote her vice-president, Michel Temer, was sworn in which ended 13 years in power of her left-wing Workers' Party. Temer is in China, where he will take part in a summit of the G20 group of major economies.
The centre-right PMDB party politician had been serving as acting president during the impeachment proceedings. Temer will serve out Rousseff's term until 1 January 2019. During his first cabinet meeting since the vote, Temer said his inauguration marked a "new era of hope".
The dismissal of Rousseff has caused a rift between Brazil and three left-wing South American governments criticised the move later on Wednesday. Brazil and Venezuela recalled each other's ambassadors. Brazilian envoys to Bolivia and Ecuador have also been ordered home.
Rousseff lost the impeachment battle but won a separate Senate vote that had sought to ban her from public office for eight years. Pledging to appeal against her dismissal, she told her supporters: "I will not say goodbye to you. I am certain I can say, See you soon."
This is to mention that Rousseff was suspended in May after the Senate voted to go ahead with the impeachment process. She was accused of moving funds between government budgets, which is illegal under Brazilian law.
Brazilian President Dilma Rousseff has filed an appeal at the Supreme Court against the Senate's decision to dismiss her after an impeachment trial.
More than two-thirds of the Senate voted on Wednesday to remove Ms Rousseff from office for illegally manipulating the budget two years ago.