Wildcats, butterflies, tortoises: all are endangered by Trump's border wall

Wildcats, butterflies, tortoises: all are endangered by Trump's border wall
- Deep in Texas's Rio Grande Valley, where half the US's species of butterflies reside in a protected swath of green, Donald Trump's wall may soon rise from an earthen levee. The wall is designed to be a barricade to anyone who has crossed the nearby Rio Grande river from Mexico, with a concrete base ...