Republican presidential hopeful Ben Carson says Donald Trump's proposal to deport everyone who is in the country illegally is a logistical nightmare.
The retired neurosurgeon spoke before The Commonwealth Club of California on Tuesday in a 75-minute event where he took questions from the audience on topics ranging from abortion to illegal immigration.
Carson said people who call for mass deportation do not understand what that would entail, legally and otherwise.
He said he would secure the border, but also grant guest-worker status to people who are in the country without documentation.
Carson has surged in recent polls, buoyed by a sly humor and self-deprecating demeanor that would-be voters say they find refreshing.