Donald Trump questions Kamala Harris' racial identity

Donald Trump has questioned Kamala Harris' racial identity during a heated exchange at a convention for black journalists.

Trump falsely claimed the vice-president and presumptive Democratic nominee had only emphasised her Asian-American heritage until recently when, he claimed, "she became a black person".

Kamala Harris is the first black and Asian-American vice-president, with Indian and Jamaican-born parents. She attended Howard University, a historically black university, and joined the predominantly black Alpha Kappa Alpha sorority.