Cory Booker defends Kamala Harris after Don Jr shared tweet claiming she ...

Cory Booker came to the defense of Kamala Harris on Saturday by using foul language on Twitter after Donald Trump Jr retweeted - and then deleted - a post questioning her ancestry.

‘Kamala Harris doesn’t have s**t to prove,’ the senator from New Jersey tweeted on Saturday.

Booker was replying to a New York Times report about the president’s eldest son who shared a tweet that claimed Harris, the senator from California, was not ‘black enough’ to discuss race relations in America.

Both Booker and Harris are contenders for the Democratic Party nomination for president.

Donald Trump Jr

Senator Kamala Harris

Donald Trump Jr (left) on Thursday retweeted - and then deleted - a tweet which claimed that Senator Kamala Harris (right) of California 'is not an American Black' but rather is 'half Indian and half Jamaican'

Senator Cory Booker (above) of New Jersey came to Harris's defense on Twitter on Saturday

Senator Cory Booker (above) of New Jersey came to Harris's defense on Twitter on Saturday

‘Kamala Harris doesn’t have s**t to prove,’ the senator from New Jersey tweeted on Saturday

‘Kamala Harris doesn’t have s**t to prove,’ the senator from New Jersey tweeted on Saturday

Don Jr on Thursday retweeted a post by Ali Alexander, an alt-right fringe personality on Twitter, who wrote: ‘Kamala Harris is *not* an American Black. She is half Indian and half Jamaican.

‘I'm so sick of people robbing American Blacks (like myself) of our history.

‘It's disgusting. Now using it for debate time at [the Democratic debate in Miami on Thursday].

‘These are my people not her people.

‘Fr*****g disgusting.’

Don Jr retweeted the tweet, adding: ‘Is this true? Wow.’

A short time later, the president’s eldest son deleted the retweet.

Don Jr has nearly 3.6 million Twitter followers.

Since Donald Trump entered politics, Don Jr has been outspoken in his support for his father.

Don Jr on Thursday retweeted a post by Ali Alexander, an alt-right fringe personality on Twitter, who wrote: ‘Kamala Harris is *not* an American Black. She is half Indian and half Jamaican. I'm so sick of people robbing American Blacks (like myself) of our history. It's disgusting. Now using it for debate time at [the Democratic debate in Miami on Thursday]. These are my people not her people. Fr*****g disgusting.’

Don Jr on Thursday retweeted a post by Ali Alexander, an alt-right fringe personality on Twitter, who wrote: ‘Kamala Harris is *not* an American Black. She is half Indian and half Jamaican. I'm so sick of people robbing American Blacks (like myself) of our history. It's disgusting. Now using it for debate time at [the Democratic debate in Miami on Thursday]. These are my people not her people. Fr*****g disgusting.’

A spokesperson for Don Jr told the Times: ‘Don’s tweet was simply him asking if it was true that Kamala Harris was half-Indian because it’s not something he had ever heard before and once he saw that folks were misconstruing the intent of his tweet, he quickly deleted it.’

A spokesperson for Don Jr told the Times: ‘Don’s tweet was simply him asking if it was true that Kamala Harris was half-Indian because it’s not something he had ever heard before and once he saw that folks were misconstruing the intent of his tweet, he quickly deleted it.’

A spokesperson for Don Jr told the Times: ‘Don’s tweet was simply him asking if it was true that Kamala Harris was half-Indian because it’s not something he had ever heard before and once he saw that folks were misconstruing the intent of his tweet, he quickly deleted it.’

Alexander’s tweet has gone viral and been reposted by

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