Ken Salazar: “There are a number of different stressors affecting that ecosystem, and they include invasive species and water quality.”

We need someone in the White House to oversee the border, migration, Mexico, and the Americas. No one is in charge now. We need a border and migration czar.

They have to be dismantled. We have to do this work together with the Mexican government.

What is being neglected here is the bigger picture. And that's this foreign policy paradigm that is so required for the United States and Mexico and the Americas.

I think the partnership that we can build between the leaders of both countries targeting the root causes of migration, and working together on issues of border security are all great opportunities in front of us.