Hakeem Jeffries

“Hate and extreme rhetoric have no place in our society," Lupe Todd, Mr. Jeffries' campaign spokeswoman said. "We denounce David Duke's remarks in its entirety and urge the other candidate in this race to do the same."

In his video, Mr. Duke acknowledged he has disagreements with Mr. Barron, a former Black Panther, but in spite of those differences, he said he supports Mr. Barron for his criticism of Israel and accused Mr. Jeffries of having "sold his soul to the international Zio-bankers.”

“In a race for Congress between an anti-Zionist black activist and a black activist who is a bought and paid for Zionist Uncle Tom, I’ll take the anti-Zionist any day,” Mr. Duke said. “In this election of limited choices, I believe that Charles Barron is the best choice."

For his part, Mr. Barron told the Daily News Mr. Duke's endorsement was "foolishness."

"We're staying focused and we demand respect for our campaign," Mr. Barron said. "I don't think that's a campaign issue. I don't think it's intelligent."