Sen. Kamala Harris‘ campaign is clapping back to trolls that say she isn’t Black enough, garnering support even from competitors in the crowded field of Democratic presidential candidates. Critics compared the “birtherism” claims to President Barack Obama‘s experience.

During Thursday’s Democratic Presidential debate, Donald Trump Jr. replied to a tweet questioning Harris’ identity, sparking a social media firestorm, CNN reported.

READ MORE: Kamala Harris hit in new birther movement

The tweet, written by a critic who identifies as African American, 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 #DemDebate2? These are my people not her people. Freaking disgusting.”

Trump Jr.’s response to the tweet: “Is this true? Wow,” has since been deleted, and Donald Trump’s spokesman Andy Surabian told The New York Times it was a misunderstanding.

“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,” Surabian said.”And once he saw that folks were misconstruing the intent of his tweet, he quickly deleted it.”

But Harris’ aide, Lily Adams, quickly bounced back with a response. “This is the same type of racist attack his father used to attack Barack Obama,” she said, according to CNN. “It didn’t work then and it won’t work now.”

Joe Biden, whom Harris trounced at Thursday’s debate, tweeted:

Elizabeth Warren, Gov. Jay Inslee, Julian Castro and Beto O’Rourke agreed:

However, the best clapback of them all came form U.S. Sen. Cory Booker.

READ MORE: Top 5 winning moments from Sen. Kamala Harris during her first 2020 Democratic Debate

Kamala’s “Blackness” is in question because although she was born in the U.S., she was born to an Indian mother and Jamaican father, both immigrants; her marriage to a white man; and her record of incarcerating minorities as a prosecutor.

But Harris told the Breakfast Club in March, she’s unbothered by false claims about her blackness.

“So I was born in Oakland, and raised in the United States, except for the years that I was in high school in Montreal, Canada,” Harris responded with a laugh. “And look, this is the same thing they did to Barack (Obama). This is not new to us and so I think that we know what they are trying to do.
“They are trying to do what has been happening over the last two years, which is powerful voices trying to sow hate and division, and so we need to recognize when we’re being played,” Harris said.