Presidential hopeful and former Secretary of Housing and Urban Development Julián Castro came to his own defense after remarking the Democratic front-runner Joe Biden had a lapse in memory during the Thursday night debate in Houston.

“Are you forgetting already what you said just two minutes ago?” the 44-year-old Castro fired at Biden, 76, during a spirited exchange about healthcare during the debate. “I mean, I can’t believe that you said two minutes ago that they had to buy in, and now you’re saying they don’t have to buy — you’re forgetting that.”