He's asked whether Trump's proposed border wall would halt the flow of migrants crossing through California's Yuha Desert. There's already a wall across almost one-third of the border — people still get over. Daniel Armendarec speaks with his wife and children through the U.S.-Mexico border fence on April 30, 2016 in San Diego. A wall already covers part of the border; the rest is mostly river. Thousands have died — their numbers grew the last time politicians tried fixing the border, during the Clinton administration in the 1990s.

Source: CBC News August 28, 2016 17:15 UTC