Joe Biden's chosen the first black woman in US history to become a presidential running mate.
Kamala Harris is a senator from California who's of Indian-Jamaican heritage.
She's been demanding police reform during nationwide anti-racism protests, and Biden has described her as "Mr Biden's described her as a "fearless fighter for the little guy."
Donald Trump, however, has described her as 'nasty' and 'horrible' in a video released this morning.
Leah Daughtry - a former chief of staff at the Democratic Party - says she's "the right person for the job."
