"The region will be looking for signals from the U.S. delegation as to the president’s regional priorities," says AS/COA's Eric Farnsworth.

Compared to its neighbors, Argentina is moving slowly on Odebrecht corruption cases. Here are some reasons why.

Castro's attempts at reform remain unfulfilled. What can Cubans expect from his successor?

While the U.S. and others expel diplomats, Brazil’s decision not to criticize Russia reveals its uncertain position in the changing global order.

The presidential race is officially underway. Here's the rundown on the country’s biggest election in history.