Trump calls ex-White House aide ‘wacky’ and a ‘lowlife’

US President Donald Trump has called a former White House aide “wacky” and a “lowlife” after she accused him of racism.

Omarosa Manigault Newman was fired in December and secretly recorded conversations she had while working in the White House.

She has also written a book about her time there.

Al Jazeera’s Kimberly Halkett reports from Washington, DC.