Huh? We already have a wall. It covers about 1/4th of the US-Mexico border. Trump would just be expanding it. Likely to around a half of the total border (M

Huh? We already have a wall. It covers about 1/4th of the US-Mexico border. Trump would just be expanding it. Likely to around a half of the total border (Much of the border is close to impassable, due to mountains, desert, ect).