Donald Trump: illegal immigrants are 'infesting' America in chilling message

Donald Trump has escalated his rhetoric on illegal immigration as outrage grows at his immigration's policy of separating parents and children on the US border with Mexico.

In a chilling tweet, the President said illegal immigrants are "pouring" into the United States, and his political opponents wanted them to "infest" the country.

He went on to suggest his administration's hands were tied on whether to arrest and split up families at the border, which is untrue.