CLEAN : US ambassator to Mexico accuses migrant caravan organizers of complicity with "criminals"

The video discusses the progress and challenges in US-Mexico relations, highlighting key figures like Secretary Kerry and President Lopez Obrador. It covers economic and social issues, including the global supply chain, and expresses optimism despite challenges. Financial and criminal concerns are also addressed, concluding with a future outlook on bilateral relations.

How does the speaker express optimism regarding the future of US-Mexico relations?

What challenges are mentioned in relation to economic cooperation between the two countries?