Rousseff faces coalition collapse

Brazil's largest political party looks set to quit the government of President Dilma Rousseff on Tuesday, in a move that would trigger the collapse of the coalition and propel her a step closer to impeachment.

The country's largest party, the PMDB, is set to decide on Tuesday whether to quit the government, but top figures indicated the break was all but final.

"It will be an exit meeting, a goodbye to the government. We calculate we have a vote of more than 80 percent in favor of quitting," said PMDB lawmaker Osmar Terra.