Donald Trump is a “racist” who has used the “N-word” repeatedly, Omarosa Manigault Newman, once the most prominent African American in the White House, claims in a searing memoir.

The future US president was caught on mic uttering the taboo racial slur “multiple times” during the making of his reality TV show The Apprentice and there is a tape to prove it, according to Manigault Newman, citing three unnamed sources.