Brazil protests take toll on Rousseff's popularity, economy key

BRASILIA (Reuters) - An opinion poll released on Thursday cast fresh doubt on President Dilma Rousseff's re-election chances next year, showing that her approval rating plummeted following massive street protests that swept Brazil last month.

The share of Brazilians who consider Rousseff's administration "great" or "good" slumped to 31 percent from 55 percent in mid-June, putting it on par for the first time with those who disapprove of the government, according to the survey by polling firm Ibope.