Residents along Arizona's 372-mile border with Mexico make up a complicated tapestry of views, concerns and hopes on the eve of Trump's inauguration.

A migrant shelter south of the Arizona-Mexico border has served as a vital lifeline for thousands of migrants seeking a better future in the United States ...

President Donald Trump is already following through on campaign promises he made to crack down on the flow of migrants ...

Trump is declaring a national border emergency and taking other steps to curb immigration. Here's what that means.

We are ready to receive you on this side of the border,' Mexico's interior minister, Rosa Icela Rodríguez, said.

Mexico was raising sprawling tents on the U.S. border Wednesday as it braced for President Donald Trump to fulfill his pledge to reverse mass migration ...

The U..S Attorney's Office revealed on Monday that the Tucson Sector Border Patrol and Yuma Border Patrol made 3,141 arrests ...

Arizona Republic reporters traveled along that border to far-flung communities ... a fraction of the number living in the much larger town of Naco, Mexico, just across the border.

Nogales, Mexico — across from Nogales, Arizona — announced that it would build shelters on soccer fields and in a gymnasium. The border cities of Matamoros and Piedras Negras have launched ...