Joe Biden questioned whether Kamala Harris knew his record when she confronted the 2020 Democratic presidential nominee during the primary over what she termed as “hurtful” comments on race.

During their first joint TV interview, granted to ABC, Biden and Harris were grilled on their tense exchange during the opening debate. There, in a viral moment, California’s junior senator told the two-term vice president his cozy relationships with known segregationist colleagues in the Senate and his opposition to federally-mandated busing in the 1960s and 1970s were personally upsetting.