Latin America & the Caribbean
Three out of the last four [Summits of the Americas] were antagonistic, ALBA-driven. You'll notice though, whereas ALBA was able to get a lot of support from let's say the middle countries before, they didn't this time.
[By engaging Cuba] President Obama has turned what is a major thorn with the entire hemisphere into a strong positive. Ironically, Cuba and Raúl Castro now provide a shield to the United States against criticism from other left-leaning governments in Latin America.