Analysis: U.S.-Mexican border wall not guaranteed to reduce illegal immigration

U.S. President Donald Trump is continuing his plan to build a wall on the U.S.-Mexican border in a bid to stem illegal immigration, but experts said whether the wall will work remains an open question. During his campaign, Trump made border security one of his main platforms, repeatedly promising to build a wall on the U.S.-Mexican border to stop the flood of illegal migrants who head into the U.S. every day.