"Sad Sunday", tweeted Tarso Genro, the governor of the southern state of Rio Grande do Sul.

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The party's new president, Tarso Genro, formerly the education minister, is caught in the middle.

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Tarso Genro, the justice minister, says that the trial of Mr Dantas shows that the institutions of justice are now functioning properly.

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In 2009, Brazil's award-winning telenovela, "Caminho das Indias" ("India: A Love Story") featured a character Tarso Cadore, played by rising star, Bruno Gagliasso, who suffered from schizophrenia.

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"From the executive office, they will not lack a penny, a document, an action or any other support, so that we can have an inquiry with depth and with the responsibility that it deserves, " Gov. Tarso Genro said.

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