The US-Mexico border fence stretches into the countryside near Nogales, Arizona, in March 2013. The United States’ southern border with Mexico is 1,933 miles long, stretching from the Pacific ...

The Nogales border between Arizona and Mexico around 1898. (National Archives) As Zeferino Gil Lamadrid walked across International Street (and thus the U.S.-Mexico border), American inspector ...

Vice President Kamala Harris walked a scrubby stretch of fence line along Arizona’s border with Mexico on Friday, seeking to project an image of strength against illegal migration as she ...