CASTRO: “But the difference between what I support and what you support, Vice President Biden, is that you require them to opt in and I would not require them to opt in, they would automatically be enrolled., they wouldn't have to buy in. That’s a big difference, because Barack Obama’s vision was not to leave 10 million people uncovered. He wanted every single person in this country covered. My plan would do that. Your plan would not."
BIDEN: "They do not have to buy in. They do not have to buy in."
CASTRO: "You just said that — you just said that two minutes ago. You just said two minutes ago that they would have to buy in. You said they would have to buy in."
BIDEN: " — would not have to buy in. If you qualify — "
CASTRO: "Are you forgetting what you said two minutes ago? Are you forgetting already what you said just two minutes ago? 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 in. You’re forgetting that."