President Donald Trump has signalled the theme of his 2020 bid for reelection: racism.br CNN reports Trump this week raised a false and racist conspiracy theory about Joe Biden's running mate, California Sen. Kamala Harris.br Trump's move elevated the efforts of the alt-right to portray her Harris as 'other' because of her mixed-race heritage.br Sen. Harris was born in Oakland, California, to an Indian mother and a Jamaican father. Both of Harris's parents were legal immigrants to the US.br Harris is the first Black and South Asian American woman on a major party ticket.br Trump is running the most racially-charged presidential campaign that America has seen since the 1968 run of former Alabama Gov. George Wallace.