Sen. Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (D-Calif.), a 2020 presidential contender, accused Attorney General William Barr Bill BarrHarris faces pivotal moment with Supreme Court battle Hillicon Valley: DOJ proposes tech liability shield reform to Congress | Treasury sanctions individuals, groups tied to Russian malign influence activities | House Republican introduces bill to set standards for self-driving cars McCarthy threatens motion to oust Pelosi if she moves forward with impeachment MORE of lying to Congress, telling the audience during an NAACP event Sunday that Barr’s primary loyalty is to President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE, according to The Associated Press.

Barr, Harris said, “lied to Congress” and "is clearly more interested in representing the president than the American people."

She made the remarks during a keynote speech at the Detroit NAACP Fight for Freedom Fund dinner, days after she made headlines for a tense exchange with Barr in which she pressed him on whether he had reviewed special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s evidence before making the decision not to charge Trump with obstruction of justice, as well as whether Trump had ever pressured him to open investigations into specific people.

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On Friday, Harris wrote Department of Justice Inspector General Michael Horowitz requesting the same information.

In Harris’s speech, she also pushed back on talk of “electability” with regard to Midwestern states, without explicitly invoking her own candidacy.

"They usually put the Midwest in a simplistic box and a narrow narrative," Harris said, according to the AP. "The conversation too often suggests certain voters will only vote for certain candidates regardless of whether their ideas will lift up all of our families. It's shortsighted. It's wrong. And voters deserve better."

Harris also told the predominantly African American audience that her administration would double the size of the Justice Department’s civil rights division and take further action to hold social media platforms accountable for the spread of misinformation, according to the AP.