President Biden and Vice President Kamala Harris addressed Latin American leaders at the Summit of the Americas in Los Angeles on Wednesday night. But the absence of several key heads-of-state, including Mexico’s, underscores the difficulty of cooperation on issues from climate change and economic development to immigration.

Here & Now‘s Celeste Headlee speaks with NPR correspondent Carrie Kahn, who is in Los Angeles for the summit.

This article was originally published on WBUR.org.

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