VIDEO: Beto O'Rourke explains his nickname to Stephen Colbert

Even in friendly environments like on The Late Show with Stephen Colbert, Democratic U.S. Senate candidate Beto O'Rourke cannot escape questions about his name. Born Robert Francis O'Rourke, the Congressman from El Paso once again found himself explaining, this time to Colbert, how in El Paso a lot of boys with the name Robert or Roberto or Alberto end up being called Beto for short.