The opposition has to get over internal divisions if it wants real change, writes AS/COA’s Guillermo Zubillaga for U.S. News & World Report.

The road to the White House may lead through Puerto Rico, but only Congress can pull the island from the economic brink.

Dilma Rousseff has the support to block impeachment – for now.

The opposition gained a historic victory—and a supermajority—in the National Assembly in December 6 elections.

"Brazil’s impeachment process has both legal and political elements, and the outcome will depend on a whole range of actors and institutions," points out AS/COA's Brian Winter.

"It's political chaos in Brazil. It's unclear who's going to come out of it dead, wounded or unharmed," says AS/COA's Brian Winter on impeachment proceedings against Dilma Rousseff.

Change is in store for Argentina when Mauricio Macri takes office on December 10, but challenges lie ahead for the new government.