Trump compares illegal border-crossers to 'professional mountain climbers'
![Trump compares illegal border-crossers to 'professional mountain climbers'](http://thehill.com/sites/default/files/styles/promo/public/trumpborderwall_03132018getty.jpg?itok=qH4jmdTB)
President Trump said during a visit to San Diego on Tuesday that he needs his proposed border wall with Mexico to be a tough physical obstacle, as those seeking to enter the U.S. illegally are "incredible climbers.""Getting over the top is easy...