Petrobras and Politics Sandbag Brazil's Rousseff

Threats of impeachment, scandal, political defections, economic stagnation -- what else could go wrong for Brazil's Dilma Rousseff?

She's had better weeks.

Photographer: Evaristo Sa/AFP/Getty Images

When the Brazilian Supreme Court authorized formal investigations into 49 politicians for corruption last week but left President Dilma Rousseff off the list, the sigh from the Planalto Palace was nearly audible.

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