Brazil president's popularity plummeting - new poll
The CNT/MDA poll confirmed earlier surveys that showed Rousseff's popularity tanking due to a massive corruption scandal at state-run oil company Petrobras and a stagnant economy.
When CNT/MDA last surveyed Rousseff's popularity in late September, before her narrow re-election, 41 percent of respondents rated her government as "great" or "good" and 23.5 percent as "bad" or "terrible."
(Reporting by Anthony Boadle; Editing by Tom Brown)