Story highlights Police say 275,000 demonstrators marched in Sao Paulo

Many want President Dilma Rousseff to be impeached

A corruption scandal has implicated politicians in her party

Sao Paulo, Brazil (CNN) Throngs of protesters packed the streets of major Brazilian cities on Sunday, pushing for the impeachment of President Dilma Rousseff.

Fueled by mounting anger over a corruption scandal that has implicated politicians in Rousseff's party, demonstrators chanted "Out with Dilma" and "Time for change."

Police estimated that 275,000 demonstrators marched in Sao Paulo. A sea of protesters dressed in the green and yellow of the Brazilian flag used decades-old rallying cries to fire up their ranks, singing rock songs that date back to protests of the country's one-time military dictatorship.

It's the second day of nationwide anti-government demonstrations in less than a month. And protesters vowed that it wouldn't be the last.

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