President Dilma Rousseff looked to shore up the support of parties still in her governing coalition after Brazil’s biggest quit the bloc, complicating her fight to fend off impeachment proceedings as a plunging economy makes reforms difficult and has some lawmakers worried about hosting the Olympics in August.

A day after the Brazilian Democratic Movement Party announced that its members would be immediately giving up their six Cabinet posts and some 600 federal government jobs, it appeared that at least three of its Cabinet ministers planned to stay in Rousseff’s government.