Booker Targets Biden After Castro’s Attack Over Supposed Memory Lapse

(L)-2020 presidential candidate and former Vice President Joe Biden speaks at the Democratic primary debate in Houston, Texas on Sept. 12, 2019. (Win McNamee/Getty Images) (R)-Democratic presidential candidate Sen. Cory Booker (D-N.J.) is interviewed the spin room after the Democratic Presidential Debate at Texas Southern University in Houston, Texas on Sept. 12, 2019. Justin Sullivan/Getty Images

Former Vice President Joe Biden was targeted on Sept. 12 by a number of rivals vying for the Democratic presidential nomination, including Sen. Cory Booker (D-N.J.) and Julian Castro, who was secretary of Housing and Urban Development for three years while Biden was vice president.

Castro took aim at Biden early in Thursday’s debate, accusing him of forgetting something he'd just said moments before amid a tense exchange involving multiple contenders over healthcare.