DHS claims thousands of non-citizens on voter rolls in several states, including Pa. and NJ

President Donald Trump used a primetime address to question the legitimacy of U.S. elections and push for more restrictive voting laws. He also made an argument that there are more than 250,000 non-citizens on the voter rolls that have been identified so far in four states, including Pennsylvania and New Jersey. ABC News national correspondent Steven Portnoy reports. (Photo by Alex Wong/Getty Images)