In Mexico, Trump asserts US right to build border wall Republican White House hopeful Donald Trump on Wednesday stood alongside Mexico's President Enrique Pena Nieto and reiterated his campaign declaration that the United States can and will erect a border wall to stem illegal immigration, while Pena Nieto said the Mexican people had been "offended" by comments Trump had made. IMAGES AND SOUNDBITES //COMPLETES VID932029_EN AND VID931994_EN//